diff --git a/lib/yt_dlp/YoutubeDL.py b/lib/yt_dlp/YoutubeDL.py
index 1feed3052..f322b12a2 100644
--- a/lib/yt_dlp/YoutubeDL.py
+++ b/lib/yt_dlp/YoutubeDL.py
@@ -60,7 +60,7 @@
     get_postprocessor,
 )
 from .postprocessor.ffmpeg import resolve_mapping as resolve_recode_mapping
-from .update import REPOSITORY, current_git_head, detect_variant
+from .update import REPOSITORY, _get_system_deprecation, current_git_head, detect_variant
 from .utils import (
     DEFAULT_OUTTMPL,
     IDENTITY,
@@ -239,9 +239,9 @@ class YoutubeDL:
                        'selected' (check selected formats),
                        or None (check only if requested by extractor)
     paths:             Dictionary of output paths. The allowed keys are 'home'
-                       'temp' and the keys of OUTTMPL_TYPES (in utils.py)
+                       'temp' and the keys of OUTTMPL_TYPES (in utils/_utils.py)
     outtmpl:           Dictionary of templates for output names. Allowed keys
-                       are 'default' and the keys of OUTTMPL_TYPES (in utils.py).
+                       are 'default' and the keys of OUTTMPL_TYPES (in utils/_utils.py).
                        For compatibility with youtube-dl, a single string can also be used
     outtmpl_na_placeholder: Placeholder for unavailable meta fields.
     restrictfilenames: Do not allow "&" and spaces in file names
@@ -422,7 +422,7 @@ class YoutubeDL:
                          asked whether to download the video.
                        - Raise utils.DownloadCancelled(msg) to abort remaining
                          downloads when a video is rejected.
-                       match_filter_func in utils.py is one example for this.
+                       match_filter_func in utils/_utils.py is one example for this.
     color:             A Dictionary with output stream names as keys
                        and their respective color policy as values.
                        Can also just be a single color policy,
@@ -640,17 +640,9 @@ def process_color_policy(stream):
             for name, stream in self._out_files.items_ if name != 'console'
         })
 
-        # The code is left like this to be reused for future deprecations
-        MIN_SUPPORTED, MIN_RECOMMENDED = (3, 7), (3, 7)
-        current_version = sys.version_info[:2]
-        if current_version < MIN_RECOMMENDED:
-            msg = ('Support for Python version %d.%d has been deprecated. '
-                   'See  https://github.com/yt-dlp/yt-dlp/issues/3764  for more details.'
-                   '\n                    You will no longer receive updates on this version')
-            if current_version < MIN_SUPPORTED:
-                msg = 'Python version %d.%d is no longer supported'
-            self.deprecated_feature(
-                f'{msg}! Please update to Python %d.%d or above' % (*current_version, *MIN_RECOMMENDED))
+        system_deprecation = _get_system_deprecation()
+        if system_deprecation:
+            self.deprecated_feature(system_deprecation.replace('\n', '\n                    '))
 
         if self.params.get('allow_unplayable_formats'):
             self.report_warning(
diff --git a/lib/yt_dlp/compat/__init__.py b/lib/yt_dlp/compat/__init__.py
index 832a9138d..5ad5c70ec 100644
--- a/lib/yt_dlp/compat/__init__.py
+++ b/lib/yt_dlp/compat/__init__.py
@@ -30,7 +30,7 @@ def compat_etree_fromstring(text):
 if compat_os_name == 'nt':
     def compat_shlex_quote(s):
         import re
-        return s if re.match(r'^[-_\w./]+$', s) else '"%s"' % s.replace('"', '\\"')
+        return s if re.match(r'^[-_\w./]+$', s) else s.replace('"', '""').join('""')
 else:
     from shlex import quote as compat_shlex_quote  # noqa: F401
 
diff --git a/lib/yt_dlp/compat/urllib/__init__.py b/lib/yt_dlp/compat/urllib/__init__.py
index b27cc6133..9084b3c2b 100644
--- a/lib/yt_dlp/compat/urllib/__init__.py
+++ b/lib/yt_dlp/compat/urllib/__init__.py
@@ -1,7 +1,7 @@
 # flake8: noqa: F405
 from urllib import *  # noqa: F403
 
-del request
+del request  # noqa: F821
 from . import request  # noqa: F401
 
 from ..compat_utils import passthrough_module
diff --git a/lib/yt_dlp/extractor/_extractors.py b/lib/yt_dlp/extractor/_extractors.py
index 9cda06d8f..908abb8ac 100644
--- a/lib/yt_dlp/extractor/_extractors.py
+++ b/lib/yt_dlp/extractor/_extractors.py
@@ -137,10 +137,6 @@
     ArteTVCategoryIE,
 )
 from .arnes import ArnesIE
-from .asiancrush import (
-    AsianCrushIE,
-    AsianCrushPlaylistIE,
-)
 from .atresplayer import AtresPlayerIE
 from .atscaleconf import AtScaleConfEventIE
 from .atttechchannel import ATTTechChannelIE
@@ -275,6 +271,10 @@
     BrightcoveLegacyIE,
     BrightcoveNewIE,
 )
+from .brilliantpala import (
+    BrilliantpalaElearnIE,
+    BrilliantpalaClassesIE,
+)
 from .businessinsider import BusinessInsiderIE
 from .bundesliga import BundesligaIE
 from .buzzfeed import BuzzFeedIE
@@ -358,6 +358,10 @@
 from .cinchcast import CinchcastIE
 from .cinemax import CinemaxIE
 from .cinetecamilano import CinetecaMilanoIE
+from .cineverse import (
+    CineverseIE,
+    CineverseDetailsIE,
+)
 from .ciscolive import (
     CiscoLiveSessionIE,
     CiscoLiveSearchIE,
@@ -1126,6 +1130,7 @@
     MofosexEmbedIE,
 )
 from .mojvideo import MojvideoIE
+from .monstercat import MonstercatIE
 from .morningstar import MorningstarIE
 from .motherless import (
     MotherlessIE,
@@ -1298,6 +1303,11 @@
     NineCNineMediaIE,
     CPTwentyFourIE,
 )
+from .niconicochannelplus import (
+    NiconicoChannelPlusIE,
+    NiconicoChannelPlusChannelVideosIE,
+    NiconicoChannelPlusChannelLivesIE,
+)
 from .ninegag import NineGagIE
 from .ninenow import NineNowIE
 from .nintendo import NintendoIE
@@ -1451,6 +1461,7 @@
 from .phoenix import PhoenixIE
 from .photobucket import PhotobucketIE
 from .piapro import PiaproIE
+from .piaulizaportal import PIAULIZAPortalIE
 from .picarto import (
     PicartoIE,
     PicartoVodIE,
diff --git a/lib/yt_dlp/extractor/abc.py b/lib/yt_dlp/extractor/abc.py
index f56133eb3..d2cf5f7c5 100644
--- a/lib/yt_dlp/extractor/abc.py
+++ b/lib/yt_dlp/extractor/abc.py
@@ -180,7 +180,6 @@ class ABCIViewIE(InfoExtractor):
     _VALID_URL = r'https?://iview\.abc\.net\.au/(?:[^/]+/)*video/(?P<id>[^/?#]+)'
     _GEO_COUNTRIES = ['AU']
 
-    # ABC iview programs are normally available for 14 days only.
     _TESTS = [{
         'url': 'https://iview.abc.net.au/show/gruen/series/11/video/LE1927H001S00',
         'md5': '67715ce3c78426b11ba167d875ac6abf',
diff --git a/lib/yt_dlp/extractor/arte.py b/lib/yt_dlp/extractor/arte.py
index e3cc5afb0..a19cd2a3a 100644
--- a/lib/yt_dlp/extractor/arte.py
+++ b/lib/yt_dlp/extractor/arte.py
@@ -169,7 +169,7 @@ def _real_extract(self, url):
                 )))
 
             short_label = traverse_obj(stream_version, 'shortLabel', expected_type=str, default='?')
-            if stream['protocol'].startswith('HLS'):
+            if 'HLS' in stream['protocol']:
                 fmts, subs = self._extract_m3u8_formats_and_subtitles(
                     stream['url'], video_id=video_id, ext='mp4', m3u8_id=stream_version_code, fatal=False)
                 for fmt in fmts:
diff --git a/lib/yt_dlp/extractor/asiancrush.py b/lib/yt_dlp/extractor/asiancrush.py
deleted file mode 100644
index 23f310edb..000000000
--- a/lib/yt_dlp/extractor/asiancrush.py
+++ /dev/null
@@ -1,196 +0,0 @@
-import functools
-import re
-
-from .common import InfoExtractor
-from .kaltura import KalturaIE
-from ..utils import (
-    extract_attributes,
-    int_or_none,
-    OnDemandPagedList,
-    parse_age_limit,
-    strip_or_none,
-    try_get,
-)
-
-
-class AsianCrushBaseIE(InfoExtractor):
-    _VALID_URL_BASE = r'https?://(?:www\.)?(?P<host>(?:(?:asiancrush|yuyutv|midnightpulp)\.com|(?:cocoro|retrocrush)\.tv))'
-    _KALTURA_KEYS = [
-        'video_url', 'progressive_url', 'download_url', 'thumbnail_url',
-        'widescreen_thumbnail_url', 'screencap_widescreen',
-    ]
-    _API_SUFFIX = {'retrocrush.tv': '-ott'}
-
-    def _call_api(self, host, endpoint, video_id, query, resource):
-        return self._download_json(
-            'https://api%s.%s/%s' % (self._API_SUFFIX.get(host, ''), host, endpoint), video_id,
-            'Downloading %s JSON metadata' % resource, query=query,
-            headers=self.geo_verification_headers())['objects']
-
-    def _download_object_data(self, host, object_id, resource):
-        return self._call_api(
-            host, 'search', object_id, {'id': object_id}, resource)[0]
-
-    def _get_object_description(self, obj):
-        return strip_or_none(obj.get('long_description') or obj.get('short_description'))
-
-    def _parse_video_data(self, video):
-        title = video['name']
-
-        entry_id, partner_id = [None] * 2
-        for k in self._KALTURA_KEYS:
-            k_url = video.get(k)
-            if k_url:
-                mobj = re.search(r'/p/(\d+)/.+?/entryId/([^/]+)/', k_url)
-                if mobj:
-                    partner_id, entry_id = mobj.groups()
-                    break
-
-        meta_categories = try_get(video, lambda x: x['meta']['categories'], list) or []
-        categories = list(filter(None, [c.get('name') for c in meta_categories]))
-
-        show_info = video.get('show_info') or {}
-
-        return {
-            '_type': 'url_transparent',
-            'url': 'kaltura:%s:%s' % (partner_id, entry_id),
-            'ie_key': KalturaIE.ie_key(),
-            'id': entry_id,
-            'title': title,
-            'description': self._get_object_description(video),
-            'age_limit': parse_age_limit(video.get('mpaa_rating') or video.get('tv_rating')),
-            'categories': categories,
-            'series': show_info.get('show_name'),
-            'season_number': int_or_none(show_info.get('season_num')),
-            'season_id': show_info.get('season_id'),
-            'episode_number': int_or_none(show_info.get('episode_num')),
-        }
-
-
-class AsianCrushIE(AsianCrushBaseIE):
-    _VALID_URL = r'%s/video/(?:[^/]+/)?0+(?P<id>\d+)v\b' % AsianCrushBaseIE._VALID_URL_BASE
-    _TESTS = [{
-        'url': 'https://www.asiancrush.com/video/004289v/women-who-flirt',
-        'md5': 'c3b740e48d0ba002a42c0b72857beae6',
-        'info_dict': {
-            'id': '1_y4tmjm5r',
-            'ext': 'mp4',
-            'title': 'Women Who Flirt',
-            'description': 'md5:b65c7e0ae03a85585476a62a186f924c',
-            'timestamp': 1496936429,
-            'upload_date': '20170608',
-            'uploader_id': 'craig@crifkin.com',
-            'age_limit': 13,
-            'categories': 'count:5',
-            'duration': 5812,
-        },
-    }, {
-        'url': 'https://www.asiancrush.com/video/she-was-pretty/011886v-pretty-episode-3/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.yuyutv.com/video/013886v/the-act-of-killing/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.yuyutv.com/video/peep-show/013922v-warring-factions/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.midnightpulp.com/video/010400v/drifters/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.midnightpulp.com/video/mononoke/016378v-zashikiwarashi-part-1/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.cocoro.tv/video/the-wonderful-wizard-of-oz/008878v-the-wonderful-wizard-of-oz-ep01/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.retrocrush.tv/video/true-tears/012328v-i...gave-away-my-tears',
-        'only_matching': True,
-    }]
-
-    def _real_extract(self, url):
-        host, video_id = self._match_valid_url(url).groups()
-
-        if host == 'cocoro.tv':
-            webpage = self._download_webpage(url, video_id)
-            embed_vars = self._parse_json(self._search_regex(
-                r'iEmbedVars\s*=\s*({.+?})', webpage, 'embed vars',
-                default='{}'), video_id, fatal=False) or {}
-            video_id = embed_vars.get('entry_id') or video_id
-
-        video = self._download_object_data(host, video_id, 'video')
-        return self._parse_video_data(video)
-
-
-class AsianCrushPlaylistIE(AsianCrushBaseIE):
-    _VALID_URL = r'%s/series/0+(?P<id>\d+)s\b' % AsianCrushBaseIE._VALID_URL_BASE
-    _TESTS = [{
-        'url': 'https://www.asiancrush.com/series/006447s/fruity-samurai',
-        'info_dict': {
-            'id': '6447',
-            'title': 'Fruity Samurai',
-            'description': 'md5:7535174487e4a202d3872a7fc8f2f154',
-        },
-        'playlist_count': 13,
-    }, {
-        'url': 'https://www.yuyutv.com/series/013920s/peep-show/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.midnightpulp.com/series/016375s/mononoke/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.cocoro.tv/series/008549s/the-wonderful-wizard-of-oz/',
-        'only_matching': True,
-    }, {
-        'url': 'https://www.retrocrush.tv/series/012355s/true-tears',
-        'only_matching': True,
-    }]
-    _PAGE_SIZE = 1000000000
-
-    def _fetch_page(self, domain, parent_id, page):
-        videos = self._call_api(
-            domain, 'getreferencedobjects', parent_id, {
-                'max': self._PAGE_SIZE,
-                'object_type': 'video',
-                'parent_id': parent_id,
-                'start': page * self._PAGE_SIZE,
-            }, 'page %d' % (page + 1))
-        for video in videos:
-            yield self._parse_video_data(video)
-
-    def _real_extract(self, url):
-        host, playlist_id = self._match_valid_url(url).groups()
-
-        if host == 'cocoro.tv':
-            webpage = self._download_webpage(url, playlist_id)
-
-            entries = []
-
-            for mobj in re.finditer(
-                    r'<a[^>]+href=(["\'])(?P<url>%s.*?)\1[^>]*>' % AsianCrushIE._VALID_URL,
-                    webpage):
-                attrs = extract_attributes(mobj.group(0))
-                if attrs.get('class') == 'clearfix':
-                    entries.append(self.url_result(
-                        mobj.group('url'), ie=AsianCrushIE.ie_key()))
-
-            title = self._html_search_regex(
-                r'(?s)<h1\b[^>]\bid=["\']movieTitle[^>]+>(.+?)</h1>', webpage,
-                'title', default=None) or self._og_search_title(
-                webpage, default=None) or self._html_search_meta(
-                'twitter:title', webpage, 'title',
-                default=None) or self._html_extract_title(webpage)
-            if title:
-                title = re.sub(r'\s*\|\s*.+?$', '', title)
-
-            description = self._og_search_description(
-                webpage, default=None) or self._html_search_meta(
-                'twitter:description', webpage, 'description', fatal=False)
-        else:
-            show = self._download_object_data(host, playlist_id, 'show')
-            title = show.get('name')
-            description = self._get_object_description(show)
-            entries = OnDemandPagedList(
-                functools.partial(self._fetch_page, host, playlist_id),
-                self._PAGE_SIZE)
-
-        return self.playlist_result(entries, playlist_id, title, description)
diff --git a/lib/yt_dlp/extractor/brilliantpala.py b/lib/yt_dlp/extractor/brilliantpala.py
new file mode 100644
index 000000000..6fd5b8148
--- /dev/null
+++ b/lib/yt_dlp/extractor/brilliantpala.py
@@ -0,0 +1,127 @@
+import hashlib
+
+from .common import InfoExtractor
+from ..utils import (
+    ExtractorError,
+    traverse_obj,
+    urlencode_postdata,
+)
+
+
+class BrilliantpalaBaseIE(InfoExtractor):
+    _NETRC_MACHINE = 'brilliantpala'
+    _DOMAIN = '{subdomain}.brilliantpala.org'
+
+    def _initialize_pre_login(self):
+        self._HOMEPAGE = f'https://{self._DOMAIN}'
+        self._LOGIN_API = f'{self._HOMEPAGE}/login/'
+        self._LOGOUT_DEVICES_API = f'{self._HOMEPAGE}/logout_devices/?next=/'
+        self._CONTENT_API = f'{self._HOMEPAGE}/api/v2.4/contents/{{content_id}}/'
+        self._HLS_AES_URI = f'{self._HOMEPAGE}/api/v2.5/video_contents/{{content_id}}/key/'
+
+    def _get_logged_in_username(self, url, video_id):
+        webpage, urlh = self._download_webpage_handle(url, video_id)
+        if self._LOGIN_API == urlh.url:
+            self.raise_login_required()
+        return self._html_search_regex(
+            r'"username"\s*:\s*"(?P<username>[^"]+)"', webpage, 'stream page info', 'username')
+
+    def _perform_login(self, username, password):
+        login_form = self._hidden_inputs(self._download_webpage(
+            self._LOGIN_API, None, 'Downloading login page'))
+        login_form.update({
+            'username': username,
+            'password': password,
+        })
+        self._set_cookie(self._DOMAIN, 'csrftoken', login_form['csrfmiddlewaretoken'])
+
+        logged_page = self._download_webpage(
+            self._LOGIN_API, None, note='Logging in', headers={'Referer': self._LOGIN_API},
+            data=urlencode_postdata(login_form))
+
+        if self._html_search_regex(
+                r'(Your username / email and password)', logged_page, 'auth fail', default=None):
+            raise ExtractorError('wrong username or password', expected=True)
+
+        # the maximum number of logins is one
+        if self._html_search_regex(
+                r'(Logout Other Devices)', logged_page, 'logout devices button', default=None):
+            logout_device_form = self._hidden_inputs(logged_page)
+            self._download_webpage(
+                self._LOGOUT_DEVICES_API, None, headers={'Referer': self._LOGIN_API},
+                note='Logging out other devices', data=urlencode_postdata(logout_device_form))
+
+    def _real_extract(self, url):
+        course_id, content_id = self._match_valid_url(url).group('course_id', 'content_id')
+        video_id = f'{course_id}-{content_id}'
+
+        username = self._get_logged_in_username(url, video_id)
+
+        content_json = self._download_json(
+            self._CONTENT_API.format(content_id=content_id), video_id,
+            note='Fetching content info', errnote='Unable to fetch content info')
+
+        entries = []
+        for stream in traverse_obj(content_json, ('video', 'streams', lambda _, v: v['id'] and v['url'])):
+            formats = self._extract_m3u8_formats(stream['url'], video_id, fatal=False)
+            if not formats:
+                continue
+            entries.append({
+                'id': str(stream['id']),
+                'title': content_json.get('title'),
+                'formats': formats,
+                'hls_aes': {'uri': self._HLS_AES_URI.format(content_id=content_id)},
+                'http_headers': {'X-Key': hashlib.sha256(username.encode('ascii')).hexdigest()},
+                'thumbnail': content_json.get('cover_image'),
+            })
+
+        return self.playlist_result(
+            entries, playlist_id=video_id, playlist_title=content_json.get('title'))
+
+
+class BrilliantpalaElearnIE(BrilliantpalaBaseIE):
+    IE_NAME = 'Brilliantpala:Elearn'
+    IE_DESC = 'VoD on elearn.brilliantpala.org'
+    _VALID_URL = r'https?://elearn\.brilliantpala\.org/courses/(?P<course_id>\d+)/contents/(?P<content_id>\d+)/?'
+    _TESTS = [{
+        'url': 'https://elearn.brilliantpala.org/courses/42/contents/12345/',
+        'only_matching': True,
+    }, {
+        'url': 'https://elearn.brilliantpala.org/courses/98/contents/36683/',
+        'info_dict': {
+            'id': '23577',
+            'ext': 'mp4',
+            'title': 'Physical World, Units and Measurements  - 1',
+            'thumbnail': 'https://d1j3vi2u94ebt0.cloudfront.net/institute/brilliantpalalms/chapter_contents/26237/e657f81b90874be19795c7ea081f8d5c.png',
+            'live_status': 'not_live',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }]
+
+    _DOMAIN = BrilliantpalaBaseIE._DOMAIN.format(subdomain='elearn')
+
+
+class BrilliantpalaClassesIE(BrilliantpalaBaseIE):
+    IE_NAME = 'Brilliantpala:Classes'
+    IE_DESC = 'VoD on classes.brilliantpala.org'
+    _VALID_URL = r'https?://classes\.brilliantpala\.org/courses/(?P<course_id>\d+)/contents/(?P<content_id>\d+)/?'
+    _TESTS = [{
+        'url': 'https://classes.brilliantpala.org/courses/42/contents/12345/',
+        'only_matching': True,
+    }, {
+        'url': 'https://classes.brilliantpala.org/courses/416/contents/25445/',
+        'info_dict': {
+            'id': '9128',
+            'ext': 'mp4',
+            'title': 'Motion in a Straight Line - Class 1',
+            'thumbnail': 'https://d3e4y8hquds3ek.cloudfront.net/institute/brilliantpalaelearn/chapter_contents/ff5ba838d0ec43419f67387fe1a01fa8.png',
+            'live_status': 'not_live',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }]
+
+    _DOMAIN = BrilliantpalaBaseIE._DOMAIN.format(subdomain='classes')
diff --git a/lib/yt_dlp/extractor/cineverse.py b/lib/yt_dlp/extractor/cineverse.py
new file mode 100644
index 000000000..c9fa789b7
--- /dev/null
+++ b/lib/yt_dlp/extractor/cineverse.py
@@ -0,0 +1,136 @@
+import re
+
+from .common import InfoExtractor
+from ..utils import (
+    filter_dict,
+    int_or_none,
+    parse_age_limit,
+    smuggle_url,
+    traverse_obj,
+    unsmuggle_url,
+    url_or_none,
+)
+
+
+class CineverseBaseIE(InfoExtractor):
+    _VALID_URL_BASE = r'https://www\.(?P<host>%s)' % '|'.join(map(re.escape, (
+        'cineverse.com',
+        'asiancrush.com',
+        'dovechannel.com',
+        'screambox.com',
+        'midnightpulp.com',
+        'fandor.com',
+        'retrocrush.tv',
+    )))
+
+
+class CineverseIE(CineverseBaseIE):
+    _VALID_URL = rf'{CineverseBaseIE._VALID_URL_BASE}/watch/(?P<id>[A-Z0-9]+)'
+    _TESTS = [{
+        'url': 'https://www.asiancrush.com/watch/DMR00018919/Women-Who-Flirt',
+        'skip': 'geo-blocked',
+        'info_dict': {
+            'title': 'Women Who Flirt',
+            'ext': 'mp4',
+            'id': 'DMR00018919',
+            'modified_timestamp': 1678744575289,
+            'cast': ['Xun Zhou', 'Xiaoming Huang', 'Yi-Lin Sie', 'Sonia Sui', 'Quniciren'],
+            'duration': 5811.597,
+            'description': 'md5:892fd62a05611d394141e8394ace0bc6',
+            'age_limit': 13,
+        }
+    }, {
+        'url': 'https://www.retrocrush.tv/watch/1000000023016/Archenemy! Crystal Bowie',
+        'skip': 'geo-blocked',
+        'info_dict': {
+            'title': 'Archenemy! Crystal Bowie',
+            'ext': 'mp4',
+            'id': '1000000023016',
+            'episode_number': 3,
+            'season_number': 1,
+            'cast': ['Nachi Nozawa', 'Yoshiko Sakakibara', 'Toshiko Fujita'],
+            'age_limit': 0,
+            'episode': 'Episode 3',
+            'season': 'Season 1',
+            'duration': 1485.067,
+            'description': 'Cobra meets a beautiful bounty hunter by the name of Jane Royal.',
+            'series': 'Space Adventure COBRA (Original Japanese)',
+        }
+    }]
+
+    def _real_extract(self, url):
+        url, smuggled_data = unsmuggle_url(url, default={})
+        self._initialize_geo_bypass({
+            'countries': smuggled_data.get('geo_countries'),
+        })
+        video_id = self._match_id(url)
+        html = self._download_webpage(url, video_id)
+        idetails = self._search_nextjs_data(html, video_id)['props']['pageProps']['idetails']
+
+        if idetails.get('err_code') == 1200:
+            self.raise_geo_restricted(
+                'This video is not available from your location due to geo restriction. '
+                'You may be able to bypass it by using the /details/ page instead of the /watch/ page',
+                countries=smuggled_data.get('geo_countries'))
+
+        return {
+            'subtitles': filter_dict({
+                'en': traverse_obj(idetails, (('cc_url_vtt', 'subtitle_url'), {'url': {url_or_none}})) or None,
+            }),
+            'formats': self._extract_m3u8_formats(idetails['url'], video_id),
+            **traverse_obj(idetails, {
+                'title': 'title',
+                'id': ('details', 'item_id'),
+                'description': ('details', 'description'),
+                'duration': ('duration', {lambda x: x / 1000}),
+                'cast': ('details', 'cast', {lambda x: x.split(', ')}),
+                'modified_timestamp': ('details', 'updated_by', 0, 'update_time', 'time', {int_or_none}),
+                'season_number': ('details', 'season', {int_or_none}),
+                'episode_number': ('details', 'episode', {int_or_none}),
+                'age_limit': ('details', 'rating_code', {parse_age_limit}),
+                'series': ('details', 'series_details', 'title'),
+            }),
+        }
+
+
+class CineverseDetailsIE(CineverseBaseIE):
+    _VALID_URL = rf'{CineverseBaseIE._VALID_URL_BASE}/details/(?P<id>[A-Z0-9]+)'
+    _TESTS = [{
+        'url': 'https://www.retrocrush.tv/details/1000000023012/Space-Adventure-COBRA-(Original-Japanese)',
+        'playlist_mincount': 30,
+        'info_dict': {
+            'title': 'Space Adventure COBRA (Original Japanese)',
+            'id': '1000000023012',
+        }
+    }, {
+        'url': 'https://www.asiancrush.com/details/NNVG4938/Hansel-and-Gretel',
+        'info_dict': {
+            'id': 'NNVG4938',
+            'ext': 'mp4',
+            'title': 'Hansel and Gretel',
+            'description': 'md5:e3e4c35309c2e82aee044f972c2fb05d',
+            'cast': ['Jeong-myeong Cheon', 'Eun Won-jae', 'Shim Eun-gyeong', 'Ji-hee Jin', 'Hee-soon Park', 'Lydia Park', 'Kyeong-ik Kim'],
+            'duration': 7030.732,
+        },
+    }]
+
+    def _real_extract(self, url):
+        host, series_id = self._match_valid_url(url).group('host', 'id')
+        html = self._download_webpage(url, series_id)
+        pageprops = self._search_nextjs_data(html, series_id)['props']['pageProps']
+
+        geo_countries = traverse_obj(pageprops, ('itemDetailsData', 'geo_country', {lambda x: x.split(', ')}))
+        geoblocked = traverse_obj(pageprops, (
+            'itemDetailsData', 'playback_err_msg')) == 'This title is not available in your location.'
+
+        def item_result(item):
+            item_url = f'https://www.{host}/watch/{item["item_id"]}/{item["title"]}'
+            if geoblocked:
+                item_url = smuggle_url(item_url, {'geo_countries': geo_countries})
+            return self.url_result(item_url, CineverseIE)
+
+        season = traverse_obj(pageprops, ('seasonEpisodes', ..., 'episodes', lambda _, v: v['item_id'] and v['title']))
+        if season:
+            return self.playlist_result([item_result(ep) for ep in season], playlist_id=series_id,
+                                        playlist_title=traverse_obj(pageprops, ('itemDetailsData', 'title')))
+        return item_result(pageprops['itemDetailsData'])
diff --git a/lib/yt_dlp/extractor/ign.py b/lib/yt_dlp/extractor/ign.py
index 64875f8ce..1c4f105e9 100644
--- a/lib/yt_dlp/extractor/ign.py
+++ b/lib/yt_dlp/extractor/ign.py
@@ -197,10 +197,6 @@ class IGNVideoIE(IGNBaseIE):
             'thumbnail': 'https://sm.ign.com/ign_me/video/h/how-hitman/how-hitman-aims-to-be-different-than-every-other-s_8z14.jpg',
             'duration': 298,
             'tags': 'count:13',
-            'display_id': '112203',
-            'thumbnail': 'https://sm.ign.com/ign_me/video/h/how-hitman/how-hitman-aims-to-be-different-than-every-other-s_8z14.jpg',
-            'duration': 298,
-            'tags': 'count:13',
         },
         'expected_warnings': ['HTTP Error 400: Bad Request'],
     }, {
diff --git a/lib/yt_dlp/extractor/monstercat.py b/lib/yt_dlp/extractor/monstercat.py
new file mode 100644
index 000000000..7f04825fc
--- /dev/null
+++ b/lib/yt_dlp/extractor/monstercat.py
@@ -0,0 +1,79 @@
+import re
+
+from .common import InfoExtractor
+from ..utils import (
+    clean_html,
+    extract_attributes,
+    get_element_by_class,
+    get_element_html_by_class,
+    get_element_text_and_html_by_tag,
+    int_or_none,
+    unified_strdate,
+    strip_or_none,
+    traverse_obj,
+    try_call,
+)
+
+
+class MonstercatIE(InfoExtractor):
+    _VALID_URL = r'https://www\.monstercat\.com/release/(?P<id>\d+)'
+    _TESTS = [{
+        'url': 'https://www.monstercat.com/release/742779548009',
+        'playlist_count': 20,
+        'info_dict': {
+            'title': 'The Secret Language of Trees',
+            'id': '742779548009',
+            'thumbnail': 'https://www.monstercat.com/release/742779548009/cover',
+            'release_year': 2023,
+            'release_date': '20230711',
+            'album': 'The Secret Language of Trees',
+            'album_artist': 'BT',
+        }
+    }]
+
+    def _extract_tracks(self, table, album_meta):
+        for td in re.findall(r'<tr[^<]*>((?:(?!</tr>)[\w\W])+)', table):  # regex by chatgpt due to lack of get_elements_by_tag
+            title = clean_html(try_call(
+                lambda: get_element_by_class('d-inline-flex flex-column', td).partition(' <span')[0]))
+            ids = extract_attributes(try_call(lambda: get_element_html_by_class('btn-play cursor-pointer mr-small', td)) or '')
+            track_id = ids.get('data-track-id')
+            release_id = ids.get('data-release-id')
+
+            track_number = int_or_none(try_call(lambda: get_element_by_class('py-xsmall', td)))
+            if not track_id or not release_id:
+                self.report_warning(f'Skipping track {track_number}, ID(s) not found')
+                self.write_debug(f'release_id={repr(release_id)} track_id={repr(track_id)}')
+                continue
+            yield {
+                **album_meta,
+                'title': title,
+                'track': title,
+                'track_number': track_number,
+                'artist': clean_html(try_call(lambda: get_element_by_class('d-block fs-xxsmall', td))),
+                'url': f'https://www.monstercat.com/api/release/{release_id}/track-stream/{track_id}',
+                'id': track_id,
+                'ext': 'mp3'
+            }
+
+    def _real_extract(self, url):
+        url_id = self._match_id(url)
+        html = self._download_webpage(url, url_id)
+        # wrap all `get_elements` in `try_call`, HTMLParser has problems with site's html
+        tracklist_table = try_call(lambda: get_element_by_class('table table-small', html)) or ''
+
+        title = try_call(lambda: get_element_text_and_html_by_tag('h1', html)[0])
+        date = traverse_obj(html, ({lambda html: get_element_by_class('font-italic mb-medium d-tablet-none d-phone-block',
+                            html).partition('Released ')}, 2, {strip_or_none}, {unified_strdate}))
+
+        album_meta = {
+            'title': title,
+            'album': title,
+            'thumbnail': f'https://www.monstercat.com/release/{url_id}/cover',
+            'album_artist': try_call(
+                lambda: get_element_by_class('h-normal text-uppercase mb-desktop-medium mb-smallish', html)),
+            'release_year': int_or_none(date[:4]) if date else None,
+            'release_date': date,
+        }
+
+        return self.playlist_result(
+            self._extract_tracks(tracklist_table, album_meta), playlist_id=url_id, **album_meta)
diff --git a/lib/yt_dlp/extractor/nebula.py b/lib/yt_dlp/extractor/nebula.py
index 4f3e691b7..8fba2bcf7 100644
--- a/lib/yt_dlp/extractor/nebula.py
+++ b/lib/yt_dlp/extractor/nebula.py
@@ -127,7 +127,6 @@ class NebulaIE(NebulaBaseIE):
                 'channel_id': 'lindsayellis',
                 'uploader': 'Lindsay Ellis',
                 'uploader_id': 'lindsayellis',
-                'timestamp': 1533009600,
                 'uploader_url': 'https://nebula.tv/lindsayellis',
                 'series': 'Lindsay Ellis',
                 'display_id': 'that-time-disney-remade-beauty-and-the-beast',
diff --git a/lib/yt_dlp/extractor/nfl.py b/lib/yt_dlp/extractor/nfl.py
index cc3f4495c..bd060dba9 100644
--- a/lib/yt_dlp/extractor/nfl.py
+++ b/lib/yt_dlp/extractor/nfl.py
@@ -64,6 +64,85 @@ class NFLBaseIE(InfoExtractor):
     _VIDEO_CONFIG_REGEX = r'<script[^>]+id="[^"]*video-config-[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}[^"]*"[^>]*>\s*({.+});?\s*</script>'
     _ANVATO_PREFIX = 'anvato:GXvEgwyJeWem8KCYXfeoHWknwP48Mboj:'
 
+    _CLIENT_DATA = {
+        'clientKey': '4cFUW6DmwJpzT9L7LrG3qRAcABG5s04g',
+        'clientSecret': 'CZuvCL49d9OwfGsR',
+        'deviceId': str(uuid.uuid4()),
+        'deviceInfo': base64.b64encode(json.dumps({
+            'model': 'desktop',
+            'version': 'Chrome',
+            'osName': 'Windows',
+            'osVersion': '10.0',
+        }, separators=(',', ':')).encode()).decode(),
+        'networkType': 'other',
+        'nflClaimGroupsToAdd': [],
+        'nflClaimGroupsToRemove': [],
+    }
+    _ACCOUNT_INFO = {}
+    _API_KEY = None
+
+    _TOKEN = None
+    _TOKEN_EXPIRY = 0
+
+    def _get_account_info(self, url, slug):
+        if not self._API_KEY:
+            webpage = self._download_webpage(url, slug, fatal=False) or ''
+            self._API_KEY = self._search_regex(
+                r'window\.gigyaApiKey\s*=\s*["\'](\w+)["\'];', webpage, 'API key',
+                fatal=False) or '3_Qa8TkWpIB8ESCBT8tY2TukbVKgO5F6BJVc7N1oComdwFzI7H2L9NOWdm11i_BY9f'
+
+        cookies = self._get_cookies('https://auth-id.nfl.com/')
+        login_token = traverse_obj(cookies, (
+            (f'glt_{self._API_KEY}', lambda k, _: k.startswith('glt_')), {lambda x: x.value}), get_all=False)
+        if not login_token:
+            self.raise_login_required()
+        if 'ucid' not in cookies:
+            raise ExtractorError(
+                'Required cookies for the auth-id.nfl.com domain were not found among passed cookies. '
+                'If using --cookies, these cookies must be exported along with .nfl.com cookies, '
+                'or else try using --cookies-from-browser instead', expected=True)
+
+        account = self._download_json(
+            'https://auth-id.nfl.com/accounts.getAccountInfo', slug,
+            note='Downloading account info', data=urlencode_postdata({
+                'include': 'profile,data',
+                'lang': 'en',
+                'APIKey': self._API_KEY,
+                'sdk': 'js_latest',
+                'login_token': login_token,
+                'authMode': 'cookie',
+                'pageURL': url,
+                'sdkBuild': traverse_obj(cookies, (
+                    'gig_canary_ver', {lambda x: x.value.partition('-')[0]}), default='15170'),
+                'format': 'json',
+            }), headers={'Content-Type': 'application/x-www-form-urlencoded'})
+
+        self._ACCOUNT_INFO = traverse_obj(account, {
+            'signatureTimestamp': 'signatureTimestamp',
+            'uid': 'UID',
+            'uidSignature': 'UIDSignature',
+        })
+
+        if len(self._ACCOUNT_INFO) != 3:
+            raise ExtractorError('Failed to retrieve account info with provided cookies', expected=True)
+
+    def _get_auth_token(self, url, slug):
+        if self._TOKEN and self._TOKEN_EXPIRY > int(time.time() + 30):
+            return
+
+        if not self._ACCOUNT_INFO:
+            self._get_account_info(url, slug)
+
+        token = self._download_json(
+            'https://api.nfl.com/identity/v3/token%s' % (
+                '/refresh' if self._ACCOUNT_INFO.get('refreshToken') else ''),
+            slug, headers={'Content-Type': 'application/json'}, note='Downloading access token',
+            data=json.dumps({**self._CLIENT_DATA, **self._ACCOUNT_INFO}, separators=(',', ':')).encode())
+
+        self._TOKEN = token['accessToken']
+        self._TOKEN_EXPIRY = token['expiresIn']
+        self._ACCOUNT_INFO['refreshToken'] = token['refreshToken']
+
     def _parse_video_config(self, video_config, display_id):
         video_config = self._parse_json(video_config, display_id)
         item = video_config['playlist'][0]
@@ -168,7 +247,7 @@ def _real_extract(self, url):
 
 class NFLPlusReplayIE(NFLBaseIE):
     IE_NAME = 'nfl.com:plus:replay'
-    _VALID_URL = r'https?://(?:www\.)?nfl.com/plus/games/[\w-]+/(?P<id>\d+)'
+    _VALID_URL = r'https?://(?:www\.)?nfl.com/plus/games/(?P<slug>[\w-]+)(?:/(?P<id>\d+))?'
     _TESTS = [{
         'url': 'https://www.nfl.com/plus/games/giants-at-vikings-2022-post-1/1572108',
         'info_dict': {
@@ -185,23 +264,92 @@ class NFLPlusReplayIE(NFLBaseIE):
             'thumbnail': r're:^https?://.*\.jpg',
         },
         'params': {'skip_download': 'm3u8'},
+    }, {
+        'note': 'Subscription required',
+        'url': 'https://www.nfl.com/plus/games/giants-at-vikings-2022-post-1',
+        'playlist_count': 4,
+        'info_dict': {
+            'id': 'giants-at-vikings-2022-post-1',
+        },
+    }, {
+        'note': 'Subscription required',
+        'url': 'https://www.nfl.com/plus/games/giants-at-patriots-2011-pre-4',
+        'playlist_count': 2,
+        'info_dict': {
+            'id': 'giants-at-patriots-2011-pre-4',
+        },
+    }, {
+        'note': 'Subscription required',
+        'url': 'https://www.nfl.com/plus/games/giants-at-patriots-2011-pre-4',
+        'info_dict': {
+            'id': '950701',
+            'ext': 'mp4',
+            'title': 'Giants @ Patriots',
+            'description': 'Giants at Patriots on September 01, 2011',
+            'uploader': 'NFL',
+            'upload_date': '20210724',
+            'timestamp': 1627085874,
+            'duration': 1532,
+            'categories': ['Game Highlights'],
+            'tags': ['play-by-play'],
+            'thumbnail': r're:^https?://.*\.jpg',
+        },
+        'params': {
+            'skip_download': 'm3u8',
+            'extractor_args': {'nflplusreplay': {'type': ['condensed_game']}},
+        },
     }]
 
+    _REPLAY_TYPES = {
+        'full_game': 'Full Game',
+        'full_game_spanish': 'Full Game - Spanish',
+        'condensed_game': 'Condensed Game',
+        'all_22': 'All-22',
+    }
+
     def _real_extract(self, url):
-        video_id = self._match_id(url)
-        return self.url_result(f'{self._ANVATO_PREFIX}{video_id}', AnvatoIE, video_id)
+        slug, video_id = self._match_valid_url(url).group('slug', 'id')
+        requested_types = self._configuration_arg('type', ['all'])
+        if 'all' in requested_types:
+            requested_types = list(self._REPLAY_TYPES.keys())
+        requested_types = traverse_obj(self._REPLAY_TYPES, (None, requested_types))
+
+        if not video_id:
+            self._get_auth_token(url, slug)
+            headers = {'Authorization': f'Bearer {self._TOKEN}'}
+            game_id = self._download_json(
+                f'https://api.nfl.com/football/v2/games/externalId/slug/{slug}', slug,
+                'Downloading game ID', query={'withExternalIds': 'true'}, headers=headers)['id']
+            replays = self._download_json(
+                'https://api.nfl.com/content/v1/videos/replays', slug, 'Downloading replays JSON',
+                query={'gameId': game_id}, headers=headers)
+            if len(requested_types) == 1:
+                video_id = traverse_obj(replays, (
+                    'items', lambda _, v: v['subType'] == requested_types[0], 'mcpPlaybackId'), get_all=False)
+
+        if video_id:
+            return self.url_result(f'{self._ANVATO_PREFIX}{video_id}', AnvatoIE, video_id)
+
+        def entries():
+            for replay in traverse_obj(
+                replays, ('items', lambda _, v: v['mcpPlaybackId'] and v['subType'] in requested_types)
+            ):
+                video_id = replay['mcpPlaybackId']
+                yield self.url_result(f'{self._ANVATO_PREFIX}{video_id}', AnvatoIE, video_id)
+
+        return self.playlist_result(entries(), slug)
 
 
 class NFLPlusEpisodeIE(NFLBaseIE):
     IE_NAME = 'nfl.com:plus:episode'
     _VALID_URL = r'https?://(?:www\.)?nfl.com/plus/episodes/(?P<id>[\w-]+)'
     _TESTS = [{
-        'note': 'premium content',
+        'note': 'Subscription required',
         'url': 'https://www.nfl.com/plus/episodes/kurt-s-qb-insider-conference-championships',
         'info_dict': {
             'id': '1576832',
             'ext': 'mp4',
-            'title': 'Kurt\'s QB Insider: Conference Championships',
+            'title': 'Conference Championships',
             'description': 'md5:944f7fab56f7a37430bf8473f5473857',
             'uploader': 'NFL',
             'upload_date': '20230127',
@@ -214,85 +362,9 @@ class NFLPlusEpisodeIE(NFLBaseIE):
         'params': {'skip_download': 'm3u8'},
     }]
 
-    _CLIENT_DATA = {
-        'clientKey': '4cFUW6DmwJpzT9L7LrG3qRAcABG5s04g',
-        'clientSecret': 'CZuvCL49d9OwfGsR',
-        'deviceId': str(uuid.uuid4()),
-        'deviceInfo': base64.b64encode(json.dumps({
-            'model': 'desktop',
-            'version': 'Chrome',
-            'osName': 'Windows',
-            'osVersion': '10.0',
-        }, separators=(',', ':')).encode()).decode(),
-        'networkType': 'other',
-        'nflClaimGroupsToAdd': [],
-        'nflClaimGroupsToRemove': [],
-    }
-    _ACCOUNT_INFO = {}
-    _API_KEY = None
-
-    _TOKEN = None
-    _TOKEN_EXPIRY = 0
-
-    def _get_account_info(self, url, video_id):
-        cookies = self._get_cookies('https://www.nfl.com/')
-        login_token = traverse_obj(cookies, (
-            (f'glt_{self._API_KEY}', f'gig_loginToken_{self._API_KEY}',
-             lambda k, _: k.startswith('glt_') or k.startswith('gig_loginToken_')),
-            {lambda x: x.value}), get_all=False)
-        if not login_token:
-            self.raise_login_required()
-
-        account = self._download_json(
-            'https://auth-id.nfl.com/accounts.getAccountInfo', video_id,
-            note='Downloading account info', data=urlencode_postdata({
-                'include': 'profile,data',
-                'lang': 'en',
-                'APIKey': self._API_KEY,
-                'sdk': 'js_latest',
-                'login_token': login_token,
-                'authMode': 'cookie',
-                'pageURL': url,
-                'sdkBuild': traverse_obj(cookies, (
-                    'gig_canary_ver', {lambda x: x.value.partition('-')[0]}), default='13642'),
-                'format': 'json',
-            }), headers={'Content-Type': 'application/x-www-form-urlencoded'})
-
-        self._ACCOUNT_INFO = traverse_obj(account, {
-            'signatureTimestamp': 'signatureTimestamp',
-            'uid': 'UID',
-            'uidSignature': 'UIDSignature',
-        })
-
-        if len(self._ACCOUNT_INFO) != 3:
-            raise ExtractorError('Failed to retrieve account info with provided cookies', expected=True)
-
-    def _get_auth_token(self, url, video_id):
-        if not self._ACCOUNT_INFO:
-            self._get_account_info(url, video_id)
-
-        token = self._download_json(
-            'https://api.nfl.com/identity/v3/token%s' % (
-                '/refresh' if self._ACCOUNT_INFO.get('refreshToken') else ''),
-            video_id, headers={'Content-Type': 'application/json'}, note='Downloading access token',
-            data=json.dumps({**self._CLIENT_DATA, **self._ACCOUNT_INFO}, separators=(',', ':')).encode())
-
-        self._TOKEN = token['accessToken']
-        self._TOKEN_EXPIRY = token['expiresIn']
-        self._ACCOUNT_INFO['refreshToken'] = token['refreshToken']
-
     def _real_extract(self, url):
         slug = self._match_id(url)
-
-        if not self._API_KEY:
-            webpage = self._download_webpage(url, slug, fatal=False) or ''
-            self._API_KEY = self._search_regex(
-                r'window\.gigyaApiKey=["\'](\w+)["\'];', webpage, 'API key',
-                default='3_Qa8TkWpIB8ESCBT8tY2TukbVKgO5F6BJVc7N1oComdwFzI7H2L9NOWdm11i_BY9f')
-
-        if not self._TOKEN or self._TOKEN_EXPIRY <= int(time.time()):
-            self._get_auth_token(url, slug)
-
+        self._get_auth_token(url, slug)
         video_id = self._download_json(
             f'https://api.nfl.com/content/v1/videos/episodes/{slug}', slug, headers={
                 'Authorization': f'Bearer {self._TOKEN}',
diff --git a/lib/yt_dlp/extractor/niconicochannelplus.py b/lib/yt_dlp/extractor/niconicochannelplus.py
new file mode 100644
index 000000000..89af3f7b5
--- /dev/null
+++ b/lib/yt_dlp/extractor/niconicochannelplus.py
@@ -0,0 +1,426 @@
+import functools
+import json
+
+from .common import InfoExtractor
+from ..utils import (
+    ExtractorError,
+    OnDemandPagedList,
+    filter_dict,
+    int_or_none,
+    parse_qs,
+    str_or_none,
+    traverse_obj,
+    unified_timestamp,
+    url_or_none,
+)
+
+
+class NiconicoChannelPlusBaseIE(InfoExtractor):
+    _WEBPAGE_BASE_URL = 'https://nicochannel.jp'
+
+    def _call_api(self, path, item_id, *args, **kwargs):
+        return self._download_json(
+            f'https://nfc-api.nicochannel.jp/fc/{path}', video_id=item_id, *args, **kwargs)
+
+    def _find_fanclub_site_id(self, channel_name):
+        fanclub_list_json = self._call_api(
+            'content_providers/channels', item_id=f'channels/{channel_name}',
+            note='Fetching channel list', errnote='Unable to fetch channel list',
+        )['data']['content_providers']
+        fanclub_id = traverse_obj(fanclub_list_json, (
+            lambda _, v: v['domain'] == f'{self._WEBPAGE_BASE_URL}/{channel_name}', 'id'),
+            get_all=False)
+        if not fanclub_id:
+            raise ExtractorError(f'Channel {channel_name} does not exist', expected=True)
+        return fanclub_id
+
+    def _get_channel_base_info(self, fanclub_site_id):
+        return traverse_obj(self._call_api(
+            f'fanclub_sites/{fanclub_site_id}/page_base_info', item_id=f'fanclub_sites/{fanclub_site_id}',
+            note='Fetching channel base info', errnote='Unable to fetch channel base info', fatal=False,
+        ), ('data', 'fanclub_site', {dict})) or {}
+
+    def _get_channel_user_info(self, fanclub_site_id):
+        return traverse_obj(self._call_api(
+            f'fanclub_sites/{fanclub_site_id}/user_info', item_id=f'fanclub_sites/{fanclub_site_id}',
+            note='Fetching channel user info', errnote='Unable to fetch channel user info', fatal=False,
+            data=json.dumps('null').encode('ascii'),
+        ), ('data', 'fanclub_site', {dict})) or {}
+
+
+class NiconicoChannelPlusIE(NiconicoChannelPlusBaseIE):
+    IE_NAME = 'NiconicoChannelPlus'
+    IE_DESC = 'ニコニコチャンネルプラス'
+    _VALID_URL = r'https?://nicochannel\.jp/(?P<channel>[\w.-]+)/(?:video|live)/(?P<code>sm\w+)'
+    _TESTS = [{
+        'url': 'https://nicochannel.jp/kaorin/video/smsDd8EdFLcVZk9yyAhD6H7H',
+        'info_dict': {
+            'id': 'smsDd8EdFLcVZk9yyAhD6H7H',
+            'title': '前田佳織里はニコ生がしたい！',
+            'ext': 'mp4',
+            'channel': '前田佳織里の世界攻略計画',
+            'channel_id': 'kaorin',
+            'channel_url': 'https://nicochannel.jp/kaorin',
+            'live_status': 'not_live',
+            'thumbnail': 'https://nicochannel.jp/public_html/contents/video_pages/74/thumbnail_path',
+            'description': '２０２１年１１月に放送された\n「前田佳織里はニコ生がしたい！」アーカイブになります。',
+            'timestamp': 1641360276,
+            'duration': 4097,
+            'comment_count': int,
+            'view_count': int,
+            'tags': [],
+            'upload_date': '20220105',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }, {
+        # age limited video; test purpose channel.
+        'url': 'https://nicochannel.jp/testman/video/smDXbcrtyPNxLx9jc4BW69Ve',
+        'info_dict': {
+            'id': 'smDXbcrtyPNxLx9jc4BW69Ve',
+            'title': 'test oshiro',
+            'ext': 'mp4',
+            'channel': '本番チャンネルプラステストマン',
+            'channel_id': 'testman',
+            'channel_url': 'https://nicochannel.jp/testman',
+            'age_limit': 18,
+            'live_status': 'was_live',
+            'timestamp': 1666344616,
+            'duration': 86465,
+            'comment_count': int,
+            'view_count': int,
+            'tags': [],
+            'upload_date': '20221021',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }]
+
+    def _real_extract(self, url):
+        content_code, channel_id = self._match_valid_url(url).group('code', 'channel')
+        fanclub_site_id = self._find_fanclub_site_id(channel_id)
+
+        data_json = self._call_api(
+            f'video_pages/{content_code}', item_id=content_code, headers={'fc_use_device': 'null'},
+            note='Fetching video page info', errnote='Unable to fetch video page info',
+        )['data']['video_page']
+
+        live_status, session_id = self._get_live_status_and_session_id(content_code, data_json)
+
+        release_timestamp_str = data_json.get('live_scheduled_start_at')
+
+        formats = []
+
+        if live_status == 'is_upcoming':
+            if release_timestamp_str:
+                msg = f'This live event will begin at {release_timestamp_str} UTC'
+            else:
+                msg = 'This event has not started yet'
+            self.raise_no_formats(msg, expected=True, video_id=content_code)
+        else:
+            formats = self._extract_m3u8_formats(
+                # "authenticated_url" is a format string that contains "{session_id}".
+                m3u8_url=data_json['video_stream']['authenticated_url'].format(session_id=session_id),
+                video_id=content_code)
+
+        return {
+            'id': content_code,
+            'formats': formats,
+            '_format_sort_fields': ('tbr', 'vcodec', 'acodec'),
+            'channel': self._get_channel_base_info(fanclub_site_id).get('fanclub_site_name'),
+            'channel_id': channel_id,
+            'channel_url': f'{self._WEBPAGE_BASE_URL}/{channel_id}',
+            'age_limit': traverse_obj(self._get_channel_user_info(fanclub_site_id), ('content_provider', 'age_limit')),
+            'live_status': live_status,
+            'release_timestamp': unified_timestamp(release_timestamp_str),
+            **traverse_obj(data_json, {
+                'title': ('title', {str}),
+                'thumbnail': ('thumbnail_url', {url_or_none}),
+                'description': ('description', {str}),
+                'timestamp': ('released_at', {unified_timestamp}),
+                'duration': ('active_video_filename', 'length', {int_or_none}),
+                'comment_count': ('video_aggregate_info', 'number_of_comments', {int_or_none}),
+                'view_count': ('video_aggregate_info', 'total_views', {int_or_none}),
+                'tags': ('video_tags', ..., 'tag', {str}),
+            }),
+            '__post_extractor': self.extract_comments(
+                content_code=content_code,
+                comment_group_id=traverse_obj(data_json, ('video_comment_setting', 'comment_group_id'))),
+        }
+
+    def _get_comments(self, content_code, comment_group_id):
+        item_id = f'{content_code}/comments'
+
+        if not comment_group_id:
+            return None
+
+        comment_access_token = self._call_api(
+            f'video_pages/{content_code}/comments_user_token', item_id,
+            note='Getting comment token', errnote='Unable to get comment token',
+        )['data']['access_token']
+
+        comment_list = self._download_json(
+            'https://comm-api.sheeta.com/messages.history', video_id=item_id,
+            note='Fetching comments', errnote='Unable to fetch comments',
+            headers={'Content-Type': 'application/json'},
+            query={
+                'sort_direction': 'asc',
+                'limit': int_or_none(self._configuration_arg('max_comments', [''])[0]) or 120,
+            },
+            data=json.dumps({
+                'token': comment_access_token,
+                'group_id': comment_group_id,
+            }).encode('ascii'))
+
+        for comment in traverse_obj(comment_list, ...):
+            yield traverse_obj(comment, {
+                'author': ('nickname', {str}),
+                'author_id': ('sender_id', {str_or_none}),
+                'id': ('id', {str_or_none}),
+                'text': ('message', {str}),
+                'timestamp': (('updated_at', 'sent_at', 'created_at'), {unified_timestamp}),
+                'author_is_uploader': ('sender_id', {lambda x: x == '-1'}),
+            }, get_all=False)
+
+    def _get_live_status_and_session_id(self, content_code, data_json):
+        video_type = data_json.get('type')
+        live_finished_at = data_json.get('live_finished_at')
+
+        payload = {}
+        if video_type == 'vod':
+            if live_finished_at:
+                live_status = 'was_live'
+            else:
+                live_status = 'not_live'
+        elif video_type == 'live':
+            if not data_json.get('live_started_at'):
+                return 'is_upcoming', ''
+
+            if not live_finished_at:
+                live_status = 'is_live'
+            else:
+                live_status = 'was_live'
+                payload = {'broadcast_type': 'dvr'}
+
+                video_allow_dvr_flg = traverse_obj(data_json, ('video', 'allow_dvr_flg'))
+                video_convert_to_vod_flg = traverse_obj(data_json, ('video', 'convert_to_vod_flg'))
+
+                self.write_debug(f'allow_dvr_flg = {video_allow_dvr_flg}, convert_to_vod_flg = {video_convert_to_vod_flg}.')
+
+                if not (video_allow_dvr_flg and video_convert_to_vod_flg):
+                    raise ExtractorError(
+                        'Live was ended, there is no video for download.', video_id=content_code, expected=True)
+        else:
+            raise ExtractorError(f'Unknown type: {video_type}', video_id=content_code, expected=False)
+
+        self.write_debug(f'{content_code}: video_type={video_type}, live_status={live_status}')
+
+        session_id = self._call_api(
+            f'video_pages/{content_code}/session_ids', item_id=f'{content_code}/session',
+            data=json.dumps(payload).encode('ascii'), headers={
+                'Content-Type': 'application/json',
+                'fc_use_device': 'null',
+                'origin': 'https://nicochannel.jp',
+            },
+            note='Getting session id', errnote='Unable to get session id',
+        )['data']['session_id']
+
+        return live_status, session_id
+
+
+class NiconicoChannelPlusChannelBaseIE(NiconicoChannelPlusBaseIE):
+    _PAGE_SIZE = 12
+
+    def _fetch_paged_channel_video_list(self, path, query, channel_name, item_id, page):
+        response = self._call_api(
+            path, item_id, query={
+                **query,
+                'page': (page + 1),
+                'per_page': self._PAGE_SIZE,
+            },
+            headers={'fc_use_device': 'null'},
+            note=f'Getting channel info (page {page + 1})',
+            errnote=f'Unable to get channel info (page {page + 1})')
+
+        for content_code in traverse_obj(response, ('data', 'video_pages', 'list', ..., 'content_code')):
+            # "video/{content_code}" works for both VOD and live, but "live/{content_code}" doesn't work for VOD
+            yield self.url_result(
+                f'{self._WEBPAGE_BASE_URL}/{channel_name}/video/{content_code}', NiconicoChannelPlusIE)
+
+
+class NiconicoChannelPlusChannelVideosIE(NiconicoChannelPlusChannelBaseIE):
+    IE_NAME = 'NiconicoChannelPlus:channel:videos'
+    IE_DESC = 'ニコニコチャンネルプラス - チャンネル - 動画リスト. nicochannel.jp/channel/videos'
+    _VALID_URL = r'https?://nicochannel\.jp/(?P<id>[a-z\d\._-]+)/videos(?:\?.*)?'
+    _TESTS = [{
+        # query: None
+        'url': 'https://nicochannel.jp/testman/videos',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 18,
+    }, {
+        # query: None
+        'url': 'https://nicochannel.jp/testtarou/videos',
+        'info_dict': {
+            'id': 'testtarou-videos',
+            'title': 'チャンネルプラステスト太郎-videos',
+        },
+        'playlist_mincount': 2,
+    }, {
+        # query: None
+        'url': 'https://nicochannel.jp/testjirou/videos',
+        'info_dict': {
+            'id': 'testjirou-videos',
+            'title': 'チャンネルプラステスト二郎-videos',
+        },
+        'playlist_mincount': 12,
+    }, {
+        # query: tag
+        'url': 'https://nicochannel.jp/testman/videos?tag=%E6%A4%9C%E8%A8%BC%E7%94%A8',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 6,
+    }, {
+        # query: vodType
+        'url': 'https://nicochannel.jp/testman/videos?vodType=1',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 18,
+    }, {
+        # query: sort
+        'url': 'https://nicochannel.jp/testman/videos?sort=-released_at',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 18,
+    }, {
+        # query: tag, vodType
+        'url': 'https://nicochannel.jp/testman/videos?tag=%E6%A4%9C%E8%A8%BC%E7%94%A8&vodType=1',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 6,
+    }, {
+        # query: tag, sort
+        'url': 'https://nicochannel.jp/testman/videos?tag=%E6%A4%9C%E8%A8%BC%E7%94%A8&sort=-released_at',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 6,
+    }, {
+        # query: vodType, sort
+        'url': 'https://nicochannel.jp/testman/videos?vodType=1&sort=-released_at',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 18,
+    }, {
+        # query: tag, vodType, sort
+        'url': 'https://nicochannel.jp/testman/videos?tag=%E6%A4%9C%E8%A8%BC%E7%94%A8&vodType=1&sort=-released_at',
+        'info_dict': {
+            'id': 'testman-videos',
+            'title': '本番チャンネルプラステストマン-videos',
+        },
+        'playlist_mincount': 6,
+    }]
+
+    def _real_extract(self, url):
+        """
+        API parameters:
+            sort:
+                -released_at         公開日が新しい順 (newest to oldest)
+                 released_at         公開日が古い順 (oldest to newest)
+                -number_of_vod_views 再生数が多い順 (most play count)
+                 number_of_vod_views コメントが多い順 (most comments)
+            vod_type (is "vodType" in "url"):
+                0 すべて (all)
+                1 会員限定 (members only)
+                2 一部無料 (partially free)
+                3 レンタル (rental)
+                4 生放送アーカイブ (live archives)
+                5 アップロード動画 (uploaded videos)
+        """
+
+        channel_id = self._match_id(url)
+        fanclub_site_id = self._find_fanclub_site_id(channel_id)
+        channel_name = self._get_channel_base_info(fanclub_site_id).get('fanclub_site_name')
+        qs = parse_qs(url)
+
+        return self.playlist_result(
+            OnDemandPagedList(
+                functools.partial(
+                    self._fetch_paged_channel_video_list, f'fanclub_sites/{fanclub_site_id}/video_pages',
+                    filter_dict({
+                        'tag': traverse_obj(qs, ('tag', 0)),
+                        'sort': traverse_obj(qs, ('sort', 0), default='-released_at'),
+                        'vod_type': traverse_obj(qs, ('vodType', 0), default='0'),
+                    }),
+                    channel_id, f'{channel_id}/videos'),
+                self._PAGE_SIZE),
+            playlist_id=f'{channel_id}-videos', playlist_title=f'{channel_name}-videos')
+
+
+class NiconicoChannelPlusChannelLivesIE(NiconicoChannelPlusChannelBaseIE):
+    IE_NAME = 'NiconicoChannelPlus:channel:lives'
+    IE_DESC = 'ニコニコチャンネルプラス - チャンネル - ライブリスト. nicochannel.jp/channel/lives'
+    _VALID_URL = r'https?://nicochannel\.jp/(?P<id>[a-z\d\._-]+)/lives'
+    _TESTS = [{
+        'url': 'https://nicochannel.jp/testman/lives',
+        'info_dict': {
+            'id': 'testman-lives',
+            'title': '本番チャンネルプラステストマン-lives',
+        },
+        'playlist_mincount': 18,
+    }, {
+        'url': 'https://nicochannel.jp/testtarou/lives',
+        'info_dict': {
+            'id': 'testtarou-lives',
+            'title': 'チャンネルプラステスト太郎-lives',
+        },
+        'playlist_mincount': 2,
+    }, {
+        'url': 'https://nicochannel.jp/testjirou/lives',
+        'info_dict': {
+            'id': 'testjirou-lives',
+            'title': 'チャンネルプラステスト二郎-lives',
+        },
+        'playlist_mincount': 6,
+    }]
+
+    def _real_extract(self, url):
+        """
+        API parameters:
+            live_type:
+                1 放送中 (on air)
+                2 放送予定 (scheduled live streams, oldest to newest)
+                3 過去の放送 - すべて (all ended live streams, newest to oldest)
+                4 過去の放送 - 生放送アーカイブ (all archives for live streams, oldest to newest)
+            We use "4" instead of "3" because some recently ended live streams could not be downloaded.
+        """
+
+        channel_id = self._match_id(url)
+        fanclub_site_id = self._find_fanclub_site_id(channel_id)
+        channel_name = self._get_channel_base_info(fanclub_site_id).get('fanclub_site_name')
+
+        return self.playlist_result(
+            OnDemandPagedList(
+                functools.partial(
+                    self._fetch_paged_channel_video_list, f'fanclub_sites/{fanclub_site_id}/live_pages',
+                    {
+                        'live_type': 4,
+                    },
+                    channel_id, f'{channel_id}/lives'),
+                self._PAGE_SIZE),
+            playlist_id=f'{channel_id}-lives', playlist_title=f'{channel_name}-lives')
diff --git a/lib/yt_dlp/extractor/peekvids.py b/lib/yt_dlp/extractor/peekvids.py
index d1fc058b9..41f591b09 100644
--- a/lib/yt_dlp/extractor/peekvids.py
+++ b/lib/yt_dlp/extractor/peekvids.py
@@ -146,7 +146,6 @@ class PlayVidsIE(PeekVidsBaseIE):
             'uploader': 'Brazzers',
             'age_limit': 18,
             'view_count': int,
-            'age_limit': 18,
             'categories': list,
             'tags': list,
         },
diff --git a/lib/yt_dlp/extractor/piaulizaportal.py b/lib/yt_dlp/extractor/piaulizaportal.py
new file mode 100644
index 000000000..1eb6d92b7
--- /dev/null
+++ b/lib/yt_dlp/extractor/piaulizaportal.py
@@ -0,0 +1,70 @@
+from .common import InfoExtractor
+from ..utils import (
+    ExtractorError,
+    int_or_none,
+    parse_qs,
+    time_seconds,
+    traverse_obj,
+)
+
+
+class PIAULIZAPortalIE(InfoExtractor):
+    IE_DESC = 'ulizaportal.jp - PIA LIVE STREAM'
+    _VALID_URL = r'https?://(?:www\.)?ulizaportal\.jp/pages/(?P<id>[\da-f]{8}-(?:[\da-f]{4}-){3}[\da-f]{12})'
+    _TESTS = [{
+        'url': 'https://ulizaportal.jp/pages/005f18b7-e810-5618-cb82-0987c5755d44',
+        'info_dict': {
+            'id': '005f18b7-e810-5618-cb82-0987c5755d44',
+            'title': 'プレゼンテーションプレイヤーのサンプル',
+            'live_status': 'not_live',
+        },
+        'params': {
+            'skip_download': True,
+            'ignore_no_formats_error': True,
+        },
+    }, {
+        'url': 'https://ulizaportal.jp/pages/005e1b23-fe93-5780-19a0-98e917cc4b7d?expires=4102412400&signature=f422a993b683e1068f946caf406d211c17d1ef17da8bef3df4a519502155aa91&version=1',
+        'info_dict': {
+            'id': '005e1b23-fe93-5780-19a0-98e917cc4b7d',
+            'title': '【確認用】視聴サンプルページ（ULIZA）',
+            'live_status': 'not_live',
+        },
+        'params': {
+            'skip_download': True,
+            'ignore_no_formats_error': True,
+        },
+    }]
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+
+        expires = int_or_none(traverse_obj(parse_qs(url), ('expires', 0)))
+        if expires and expires <= time_seconds():
+            raise ExtractorError('The link is expired.', video_id=video_id, expected=True)
+
+        webpage = self._download_webpage(url, video_id)
+
+        player_data = self._download_webpage(
+            self._search_regex(
+                r'<script [^>]*\bsrc="(https://player-api\.p\.uliza\.jp/v1/players/[^"]+)"',
+                webpage, 'player data url'),
+            video_id, headers={'Referer': 'https://ulizaportal.jp/'},
+            note='Fetching player data', errnote='Unable to fetch player data')
+
+        formats = self._extract_m3u8_formats(
+            self._search_regex(
+                r'["\'](https://vms-api\.p\.uliza\.jp/v1/prog-index\.m3u8[^"\']+)', player_data,
+                'm3u8 url', default=None),
+            video_id, fatal=False)
+        m3u8_type = self._search_regex(
+            r'/hls/(dvr|video)/', traverse_obj(formats, (0, 'url')), 'm3u8 type', default=None)
+
+        return {
+            'id': video_id,
+            'title': self._html_extract_title(webpage),
+            'formats': formats,
+            'live_status': {
+                'video': 'is_live',
+                'dvr': 'was_live',  # short-term archives
+            }.get(m3u8_type, 'not_live'),  # VOD or long-term archives
+        }
diff --git a/lib/yt_dlp/extractor/radiofrance.py b/lib/yt_dlp/extractor/radiofrance.py
index 35f4b91dd..ec1b97631 100644
--- a/lib/yt_dlp/extractor/radiofrance.py
+++ b/lib/yt_dlp/extractor/radiofrance.py
@@ -82,7 +82,7 @@ class RadioFranceBaseIE(InfoExtractor):
     def _extract_data_from_webpage(self, webpage, display_id, key):
         return traverse_obj(self._search_json(
             r'\bconst\s+data\s*=', webpage, key, display_id,
-            contains_pattern=r'(\[\{.*?\}\]);', transform_source=js_to_json),
+            contains_pattern=r'\[\{(?s:.+)\}\]', transform_source=js_to_json),
             (..., 'data', key, {dict}), get_all=False) or {}
 
 
diff --git a/lib/yt_dlp/extractor/rcs.py b/lib/yt_dlp/extractor/rcs.py
index 028d3d90b..b865f63fb 100644
--- a/lib/yt_dlp/extractor/rcs.py
+++ b/lib/yt_dlp/extractor/rcs.py
@@ -239,10 +239,10 @@ class RCSEmbedsIE(RCSBaseIE):
         }
     }, {
         'url': 'https://video.gazzanet.gazzetta.it/video-embed/gazzanet-mo05-0000260789',
-        'match_only': True
+        'only_matching': True
     }, {
         'url': 'https://video.gazzetta.it/video-embed/49612410-00ca-11eb-bcd8-30d4253e0140',
-        'match_only': True
+        'only_matching': True
     }]
     _WEBPAGE_TESTS = [{
         'url': 'https://www.iodonna.it/video-iodonna/personaggi-video/monica-bellucci-piu-del-lavoro-oggi-per-me-sono-importanti-lamicizia-e-la-famiglia/',
@@ -325,7 +325,7 @@ class RCSIE(RCSBaseIE):
         }
     }, {
         'url': 'https://video.corriere.it/video-360/metro-copenaghen-tutta-italiana/a248a7f0-e2db-11e9-9830-af2de6b1f945',
-        'match_only': True
+        'only_matching': True
     }]
 
 
diff --git a/lib/yt_dlp/extractor/rokfin.py b/lib/yt_dlp/extractor/rokfin.py
index 4a4d40bef..cad76f0c9 100644
--- a/lib/yt_dlp/extractor/rokfin.py
+++ b/lib/yt_dlp/extractor/rokfin.py
@@ -40,7 +40,6 @@ class RokfinIE(InfoExtractor):
             'channel': 'Jimmy Dore',
             'channel_id': 65429,
             'channel_url': 'https://rokfin.com/TheJimmyDoreShow',
-            'duration': 213.0,
             'availability': 'public',
             'live_status': 'not_live',
             'dislike_count': int,
diff --git a/lib/yt_dlp/extractor/s4c.py b/lib/yt_dlp/extractor/s4c.py
index 990ea2b44..67eff723b 100644
--- a/lib/yt_dlp/extractor/s4c.py
+++ b/lib/yt_dlp/extractor/s4c.py
@@ -78,7 +78,6 @@ class S4CSeriesIE(InfoExtractor):
         'info_dict': {
             'id': '864982911',
             'title': 'Iaith ar Daith',
-            'description': 'md5:e878ebf660dce89bd2ef521d7ce06397'
         },
     }, {
         'url': 'https://www.s4c.cymru/clic/series/866852587',
@@ -86,7 +85,6 @@ class S4CSeriesIE(InfoExtractor):
         'info_dict': {
             'id': '866852587',
             'title': 'FFIT Cymru',
-            'description': 'md5:abcb3c129cb68dbb6cd304fd33b07e96'
         },
     }]
 
diff --git a/lib/yt_dlp/extractor/sovietscloset.py b/lib/yt_dlp/extractor/sovietscloset.py
index 453016ccb..493eea2a6 100644
--- a/lib/yt_dlp/extractor/sovietscloset.py
+++ b/lib/yt_dlp/extractor/sovietscloset.py
@@ -76,7 +76,6 @@ class SovietsClosetIE(SovietsClosetBaseIE):
                 'title': 'Arma 3 - Zeus Games #5',
                 'uploader': 'SovietWomble',
                 'thumbnail': r're:^https?://.*\.b-cdn\.net/c0e5e76f-3a93-40b4-bf01-12343c2eec5d/thumbnail\.jpg$',
-                'uploader': 'SovietWomble',
                 'creator': 'SovietWomble',
                 'release_timestamp': 1461157200,
                 'release_date': '20160420',
diff --git a/lib/yt_dlp/extractor/youtube.py b/lib/yt_dlp/extractor/youtube.py
index 023d8fd8c..a39d17cf1 100644
--- a/lib/yt_dlp/extractor/youtube.py
+++ b/lib/yt_dlp/extractor/youtube.py
@@ -902,7 +902,7 @@ def extract_relative_time(relative_time_text):
         e.g. 'streamed 6 days ago', '5 seconds ago (edited)', 'updated today', '8 yr ago'
         """
 
-        # XXX: this could be moved to a general function in utils.py
+        # XXX: this could be moved to a general function in utils/_utils.py
         # The relative time text strings are roughly the same as what
         # Javascript's Intl.RelativeTimeFormat function generates.
         # See: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat
diff --git a/lib/yt_dlp/networking/__init__.py b/lib/yt_dlp/networking/__init__.py
index 5e8876484..5b1599a6d 100644
--- a/lib/yt_dlp/networking/__init__.py
+++ b/lib/yt_dlp/networking/__init__.py
@@ -1,4 +1,4 @@
-# flake8: noqa: 401
+# flake8: noqa: F401
 from .common import (
     HEADRequest,
     PUTRequest,
diff --git a/lib/yt_dlp/networking/_urllib.py b/lib/yt_dlp/networking/_urllib.py
index c327f7744..9e2bf33e4 100644
--- a/lib/yt_dlp/networking/_urllib.py
+++ b/lib/yt_dlp/networking/_urllib.py
@@ -337,7 +337,7 @@ def handle_sslerror(e: ssl.SSLError):
 
 def handle_response_read_exceptions(e):
     if isinstance(e, http.client.IncompleteRead):
-        raise IncompleteRead(partial=e.partial, cause=e, expected=e.expected) from e
+        raise IncompleteRead(partial=len(e.partial), cause=e, expected=e.expected) from e
     elif isinstance(e, ssl.SSLError):
         handle_sslerror(e)
     elif isinstance(e, (OSError, EOFError, http.client.HTTPException, *CONTENT_DECODE_ERRORS)):
diff --git a/lib/yt_dlp/networking/exceptions.py b/lib/yt_dlp/networking/exceptions.py
index 465b18ba9..f58dc246e 100644
--- a/lib/yt_dlp/networking/exceptions.py
+++ b/lib/yt_dlp/networking/exceptions.py
@@ -75,10 +75,10 @@ def __repr__(self):
 
 
 class IncompleteRead(TransportError):
-    def __init__(self, partial, expected=None, **kwargs):
+    def __init__(self, partial: int, expected: int = None, **kwargs):
         self.partial = partial
         self.expected = expected
-        msg = f'{len(partial)} bytes read'
+        msg = f'{partial} bytes read'
         if expected is not None:
             msg += f', {expected} more expected'
 
diff --git a/lib/yt_dlp/postprocessor/exec.py b/lib/yt_dlp/postprocessor/exec.py
index cfc83167c..c2e73fbab 100644
--- a/lib/yt_dlp/postprocessor/exec.py
+++ b/lib/yt_dlp/postprocessor/exec.py
@@ -1,8 +1,6 @@
-import subprocess
-
 from .common import PostProcessor
 from ..compat import compat_shlex_quote
-from ..utils import PostProcessingError, encodeArgument, variadic
+from ..utils import Popen, PostProcessingError, variadic
 
 
 class ExecPP(PostProcessor):
@@ -27,10 +25,10 @@ def parse_cmd(self, cmd, info):
     def run(self, info):
         for tmpl in self.exec_cmd:
             cmd = self.parse_cmd(tmpl, info)
-            self.to_screen('Executing command: %s' % cmd)
-            retCode = subprocess.call(encodeArgument(cmd), shell=True)
-            if retCode != 0:
-                raise PostProcessingError('Command returned error code %d' % retCode)
+            self.to_screen(f'Executing command: {cmd}')
+            _, _, return_code = Popen.run(cmd, shell=True)
+            if return_code != 0:
+                raise PostProcessingError(f'Command returned error code {return_code}')
         return [], info
 
 
diff --git a/lib/yt_dlp/update.py b/lib/yt_dlp/update.py
index d708b09e3..db79df127 100644
--- a/lib/yt_dlp/update.py
+++ b/lib/yt_dlp/update.py
@@ -112,6 +112,31 @@ def is_non_updateable():
         detect_variant(), _NON_UPDATEABLE_REASONS['unknown' if VARIANT else 'other'])
 
 
+def _get_system_deprecation():
+    MIN_SUPPORTED, MIN_RECOMMENDED = (3, 7), (3, 8)
+
+    if sys.version_info > MIN_RECOMMENDED:
+        return None
+
+    major, minor = sys.version_info[:2]
+    if sys.version_info < MIN_SUPPORTED:
+        msg = f'Python version {major}.{minor} is no longer supported'
+    else:
+        msg = f'Support for Python version {major}.{minor} has been deprecated. '
+        # Temporary until `win_x86_exe` uses 3.8, which will deprecate Vista and Server 2008
+        if detect_variant() == 'win_x86_exe':
+            platform_name = platform.platform()
+            if any(platform_name.startswith(f'Windows-{name}') for name in ('Vista', '2008Server')):
+                msg = 'Support for Windows Vista/Server 2008 has been deprecated. '
+            else:
+                return None
+        msg += ('See  https://github.com/yt-dlp/yt-dlp/issues/7803  for details.'
+                '\nYou may stop receiving updates on this version at any time')
+
+    major, minor = MIN_RECOMMENDED
+    return f'{msg}! Please update to Python {major}.{minor} or above'
+
+
 def _sha256_file(path):
     h = hashlib.sha256()
     mv = memoryview(bytearray(128 * 1024))
diff --git a/lib/yt_dlp/utils/_utils.py b/lib/yt_dlp/utils/_utils.py
index 213ccc636..ba6242380 100644
--- a/lib/yt_dlp/utils/_utils.py
+++ b/lib/yt_dlp/utils/_utils.py
@@ -825,7 +825,7 @@ def _fix(key):
         _fix('LD_LIBRARY_PATH')  # Linux
         _fix('DYLD_LIBRARY_PATH')  # macOS
 
-    def __init__(self, *args, env=None, text=False, **kwargs):
+    def __init__(self, args, *remaining, env=None, text=False, shell=False, **kwargs):
         if env is None:
             env = os.environ.copy()
         self._fix_pyinstaller_ld_path(env)
@@ -835,7 +835,21 @@ def __init__(self, *args, env=None, text=False, **kwargs):
             kwargs['universal_newlines'] = True  # For 3.6 compatibility
             kwargs.setdefault('encoding', 'utf-8')
             kwargs.setdefault('errors', 'replace')
-        super().__init__(*args, env=env, **kwargs, startupinfo=self._startupinfo)
+
+        if shell and compat_os_name == 'nt' and kwargs.get('executable') is None:
+            if not isinstance(args, str):
+                args = ' '.join(compat_shlex_quote(a) for a in args)
+            shell = False
+            args = f'{self.__comspec()} /Q /S /D /V:OFF /C "{args}"'
+
+        super().__init__(args, *remaining, env=env, shell=shell, **kwargs, startupinfo=self._startupinfo)
+
+    def __comspec(self):
+        comspec = os.environ.get('ComSpec') or os.path.join(
+            os.environ.get('SystemRoot', ''), 'System32', 'cmd.exe')
+        if os.path.isabs(comspec):
+            return comspec
+        raise FileNotFoundError('shell not found: neither %ComSpec% nor %SystemRoot% is set')
 
     def communicate_or_kill(self, *args, **kwargs):
         try:
diff --git a/lib/yt_dlp/version.py b/lib/yt_dlp/version.py
index 67cfe44ef..2a7c84b93 100644
--- a/lib/yt_dlp/version.py
+++ b/lib/yt_dlp/version.py
@@ -1,8 +1,8 @@
 # Autogenerated by devscripts/update-version.py
 
-__version__ = '2023.07.06'
+__version__ = '2023.09.24'
 
-RELEASE_GIT_HEAD = 'b532a3481046e1eabb6232ee8196fb696c356ff6'
+RELEASE_GIT_HEAD = '088add9567d39b758737e4299a0e619fd89d2e8f'
 
 VARIANT = None
 
diff --git a/lib/yt_dlp_version b/lib/yt_dlp_version
index 82a421564..0ea97a3f1 100644
--- a/lib/yt_dlp_version
+++ b/lib/yt_dlp_version
@@ -1 +1 @@
-c1d71d0d9f41db5e4306c86af232f5f6220a130b
\ No newline at end of file
+c54ddfba0f7d68034339426223d75373c5fc86df
\ No newline at end of file