diff --git a/test/test_all_urls.py b/test/test_all_urls.py
index 50c3466fa..df6d81b5d 100644
--- a/test/test_all_urls.py
+++ b/test/test_all_urls.py
@@ -36,7 +36,7 @@ class TestAllURLsMatching(unittest.TestCase):
         assertPlaylist('UUBABnxM4Ar9ten8Mdjj1j0Q')  # 585
         assertPlaylist('PL63F0C78739B09958')
         assertTab('https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q')
-        assertPlaylist('https://www.youtube.com/course?list=ECUl4u3cNGP61MdtwGTqZA0MreSaDybji8')
+        assertTab('https://www.youtube.com/course?list=ECUl4u3cNGP61MdtwGTqZA0MreSaDybji8')
         assertTab('https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC')
         assertTab('https://www.youtube.com/watch?v=AV6J6_AeFEQ&playnext=1&list=PL4023E734DA416012')  # 668
         self.assertFalse('youtube:playlist' in self.matching_ies('PLtS2H6bU1M'))
@@ -57,8 +57,8 @@ class TestAllURLsMatching(unittest.TestCase):
         assertChannel('https://www.youtube.com/channel/HCtnHdj3df7iM?feature=gb_ch_rec')
         assertChannel('https://www.youtube.com/channel/HCtnHdj3df7iM/videos')
 
-    # def test_youtube_user_matching(self):
-    #     self.assertMatch('http://www.youtube.com/NASAgovVideo/videos', ['youtube:tab'])
+    def test_youtube_user_matching(self):
+        self.assertMatch('http://www.youtube.com/NASAgovVideo/videos', ['youtube:tab'])
 
     def test_youtube_feeds(self):
         self.assertMatch('https://www.youtube.com/feed/library', ['youtube:tab'])
diff --git a/youtube_dl/extractor/generic.py b/youtube_dl/extractor/generic.py
index 711adf498..6e46b2c0e 100644
--- a/youtube_dl/extractor/generic.py
+++ b/youtube_dl/extractor/generic.py
@@ -2024,22 +2024,6 @@ class GenericIE(InfoExtractor):
             },
             'add_ie': [SpringboardPlatformIE.ie_key()],
         },
-        {
-            'url': 'https://www.youtube.com/shared?ci=1nEzmT-M4fU',
-            'info_dict': {
-                'id': 'uPDB5I9wfp8',
-                'ext': 'webm',
-                'title': 'Pocoyo: 90 minutos de episódios completos Português para crianças - PARTE 3',
-                'description': 'md5:d9e4d9346a2dfff4c7dc4c8cec0f546d',
-                'upload_date': '20160219',
-                'uploader': 'Pocoyo - Português (BR)',
-                'uploader_id': 'PocoyoBrazil',
-            },
-            'add_ie': [YoutubeIE.ie_key()],
-            'params': {
-                'skip_download': True,
-            },
-        },
         {
             'url': 'https://www.yapfiles.ru/show/1872528/690b05d3054d2dbe1e69523aa21bb3b1.mp4.html',
             'info_dict': {
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 19df6b412..289d9bab1 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -2442,7 +2442,8 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
                         )/
                         (?:
                             (?:channel|c|user|feed)/|
-                            (?:playlist|watch)\?.*?\blist=
+                            (?:playlist|watch)\?.*?\blist=|
+                            (?!(?:watch|embed|v|e)\b)
                         )
                         (?P<id>[^/?\#&]+)
                     '''
@@ -2711,13 +2712,22 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
         # inline playlist with not always working continuations
         'url': 'https://www.youtube.com/watch?v=UC6u0Tct-Fo&list=PL36D642111D65BE7C',
         'only_matching': True,
-    }
-        # TODO
-        # {
-        #     'url': 'https://www.youtube.com/TheYoungTurks/live',
-        #     'only_matching': True,
-        # }
-    ]
+    }, {
+        'url': 'https://www.youtube.com/course?list=ECUl4u3cNGP61MdtwGTqZA0MreSaDybji8',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.youtube.com/course',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.youtube.com/zsecurity',
+        'only_matching': True,
+    }, {
+        'url': 'http://www.youtube.com/NASAgovVideo/videos',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.youtube.com/TheYoungTurks/live',
+        'only_matching': True,
+    }]
 
     def _extract_channel_id(self, webpage):
         channel_id = self._html_search_meta(