diff --git a/yt_dlp/extractor/livestream.py b/yt_dlp/extractor/livestream.py
index d883eafcf..692d6ab3a 100644
--- a/yt_dlp/extractor/livestream.py
+++ b/yt_dlp/extractor/livestream.py
@@ -1,33 +1,36 @@
-import re
 import itertools
+import re
 
 from .common import InfoExtractor
-from ..compat import (
-    compat_str,
-    compat_urlparse,
-)
+from ..compat import compat_str, compat_urlparse
 from ..utils import (
-    find_xpath_attr,
-    xpath_attr,
-    xpath_with_ns,
-    xpath_text,
-    orderedSet,
-    update_url_query,
-    int_or_none,
-    float_or_none,
-    parse_iso8601,
     determine_ext,
+    find_xpath_attr,
+    float_or_none,
+    int_or_none,
+    orderedSet,
+    parse_iso8601,
+    traverse_obj,
+    update_url_query,
+    xpath_attr,
+    xpath_text,
+    xpath_with_ns,
 )
 
 
 class LivestreamIE(InfoExtractor):
     IE_NAME = 'livestream'
-    _VALID_URL = r'https?://(?:new\.)?livestream\.com/(?:accounts/(?P<account_id>\d+)|(?P<account_name>[^/]+))/(?:events/(?P<event_id>\d+)|(?P<event_name>[^/]+))(?:/videos/(?P<id>\d+))?'
+    _VALID_URL = r'''(?x)
+        https?://(?:new\.)?livestream\.com/
+        (?:accounts/(?P<account_id>\d+)|(?P<account_name>[^/]+))
+        (?:/events/(?P<event_id>\d+)|/(?P<event_name>[^/]+))?
+        (?:/videos/(?P<id>\d+))?
+    '''
     _EMBED_REGEX = [r'<iframe[^>]+src="(?P<url>https?://(?:new\.)?livestream\.com/[^"]+/player[^"]+)"']
 
     _TESTS = [{
         'url': 'http://new.livestream.com/CoheedandCambria/WebsterHall/videos/4719370',
-        'md5': '53274c76ba7754fb0e8d072716f2292b',
+        'md5': '7876c5f5dc3e711b6b73acce4aac1527',
         'info_dict': {
             'id': '4719370',
             'ext': 'mp4',
@@ -37,22 +40,37 @@ class LivestreamIE(InfoExtractor):
             'duration': 5968.0,
             'like_count': int,
             'view_count': int,
+            'comment_count': int,
             'thumbnail': r're:^http://.*\.jpg$'
         }
     }, {
-        'url': 'http://new.livestream.com/tedx/cityenglish',
+        'url': 'https://livestream.com/coheedandcambria/websterhall',
         'info_dict': {
-            'title': 'TEDCity2.0 (English)',
-            'id': '2245590',
+            'id': '1585861',
+            'title': 'Live From Webster Hall'
+        },
+        'playlist_mincount': 1,
+    }, {
+        'url': 'https://livestream.com/dayananda/events/7954027',
+        'info_dict': {
+            'title': 'Live from Mevo',
+            'id': '7954027',
         },
         'playlist_mincount': 4,
     }, {
-        'url': 'http://new.livestream.com/chess24/tatasteelchess',
+        'url': 'https://livestream.com/accounts/82',
         'info_dict': {
-            'title': 'Tata Steel Chess',
-            'id': '3705884',
-        },
-        'playlist_mincount': 60,
+            'id': '253978',
+            'view_count': int,
+            'title': 'trsr',
+            'comment_count': int,
+            'like_count': int,
+            'upload_date': '20120306',
+            'timestamp': 1331042383,
+            'thumbnail': 'http://img.new.livestream.com/videos/0000000000000372/cacbeed6-fb68-4b5e-ad9c-e148124e68a9_640x427.jpg',
+            'duration': 15.332,
+            'ext': 'mp4'
+        }
     }, {
         'url': 'https://new.livestream.com/accounts/362/events/3557232/videos/67864563/player?autoPlay=false&height=360&mute=false&width=640',
         'only_matching': True,
@@ -179,7 +197,7 @@ class LivestreamIE(InfoExtractor):
             'is_live': is_live,
         }
 
-    def _extract_event(self, event_data):
+    def _generate_event_playlist(self, event_data):
         event_id = compat_str(event_data['id'])
         account_id = compat_str(event_data['owner_account_id'])
         feed_root_url = self._API_URL_TEMPLATE % (account_id, event_id) + '/feed.json'
@@ -189,7 +207,6 @@ class LivestreamIE(InfoExtractor):
             return self._extract_stream_info(stream_info)
 
         last_video = None
-        entries = []
         for i in itertools.count(1):
             if last_video is None:
                 info_url = feed_root_url
@@ -197,31 +214,38 @@ class LivestreamIE(InfoExtractor):
                 info_url = '{root}?&id={id}&newer=-1&type=video'.format(
                     root=feed_root_url, id=last_video)
             videos_info = self._download_json(
-                info_url, event_id, 'Downloading page {0}'.format(i))['data']
+                info_url, event_id, f'Downloading page {i}')['data']
             videos_info = [v['data'] for v in videos_info if v['type'] == 'video']
             if not videos_info:
                 break
             for v in videos_info:
                 v_id = compat_str(v['id'])
-                entries.append(self.url_result(
-                    'http://livestream.com/accounts/%s/events/%s/videos/%s' % (account_id, event_id, v_id),
-                    'Livestream', v_id, v.get('caption')))
+                yield self.url_result(
+                    f'http://livestream.com/accounts/{account_id}/events/{event_id}/videos/{v_id}',
+                    LivestreamIE, v_id, v.get('caption'))
             last_video = videos_info[-1]['id']
-        return self.playlist_result(entries, event_id, event_data['full_name'])
 
     def _real_extract(self, url):
         mobj = self._match_valid_url(url)
         video_id = mobj.group('id')
         event = mobj.group('event_id') or mobj.group('event_name')
         account = mobj.group('account_id') or mobj.group('account_name')
-        api_url = self._API_URL_TEMPLATE % (account, event)
+        api_url = f'http://livestream.com/api/accounts/{account}'
+
         if video_id:
             video_data = self._download_json(
-                api_url + '/videos/%s' % video_id, video_id)
+                f'{api_url}/events/{event}/videos/{video_id}', video_id)
             return self._extract_video_info(video_data)
-        else:
-            event_data = self._download_json(api_url, video_id)
-            return self._extract_event(event_data)
+        elif event:
+            event_data = self._download_json(f'{api_url}/events/{event}', None)
+            return self.playlist_result(
+                self._generate_event_playlist(event_data), str(event_data['id']), event_data['full_name'])
+
+        account_data = self._download_json(api_url, None)
+        items = traverse_obj(account_data, (('upcoming_events', 'past_events'), 'data', ...))
+        return self.playlist_result(
+            itertools.chain.from_iterable(map(self._generate_event_playlist, items)),
+            account_data.get('id'), account_data.get('full_name'))
 
 
 # The original version of Livestream uses a different system