diff --git a/youtube_dl/extractor/mtv.py b/youtube_dl/extractor/mtv.py
index af9490ccc..228b42d2b 100644
--- a/youtube_dl/extractor/mtv.py
+++ b/youtube_dl/extractor/mtv.py
@@ -158,6 +158,9 @@ class MTVServicesInfoExtractor(InfoExtractor):
             if mgid.endswith('.swf'):
                 mgid = mgid[:-4]
         except RegexNotFoundError:
+            mgid = None
+
+        if mgid is None or ':' not in mgid:
             mgid = self._search_regex(
                 [r'data-mgid="(.*?)"', r'swfobject.embedSWF\(".*?(mgid:.*?)"'],
                 webpage, u'mgid')
diff --git a/youtube_dl/extractor/southparkstudios.py b/youtube_dl/extractor/southparkstudios.py
index aea8e6439..6955269f7 100644
--- a/youtube_dl/extractor/southparkstudios.py
+++ b/youtube_dl/extractor/southparkstudios.py
@@ -5,7 +5,7 @@ from .mtv import MTVServicesInfoExtractor
 
 class SouthParkStudiosIE(MTVServicesInfoExtractor):
     IE_NAME = 'southparkstudios.com'
-    _VALID_URL = r'https?://(www\.)?(?P<url>southparkstudios\.com/(clips|full-episodes)/(?P<id>.+?)(\?|#|$))'
+    _VALID_URL = r'https?://(www\.)?(?P<url>(?:southpark\.cc|southparkstudios)\.com/(clips|full-episodes)/(?P<id>.+?)(\?|#|$))'
 
     _FEED_URL = 'http://www.southparkstudios.com/feeds/video-player/mrss'
 
@@ -14,7 +14,7 @@ class SouthParkStudiosIE(MTVServicesInfoExtractor):
         'info_dict': {
             'id': 'a7bff6c2-ed00-11e0-aca6-0026b9414f30',
             'ext': 'mp4',
-            'title': 'Bat Daded',
+            'title': 'South Park|Bat Daded',
             'description': 'Randy disqualifies South Park by getting into a fight with Bat Dad.',
         },
     }]