+class TestMTVSubtitles(BaseTestSubtitles):
+    url = 'http://www.cc.com/video-clips/kllhuv/stand-up-greg-fitzsimmons--uncensored---too-good-of-a-mother'
+    IE = ComedyCentralIE
+
+    def getInfoDict(self):
+        return super(TestMTVSubtitles, self).getInfoDict()['entries'][0]
+
+    def test_allsubtitles(self):
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['allsubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(set(subtitles.keys()), set(['en']))
+        self.assertEqual(md5(subtitles['en']), 'b9f6ca22a6acf597ec76f61749765e65')
+
+
+class TestNRKSubtitles(BaseTestSubtitles):
+    url = 'http://tv.nrk.no/serie/ikke-gjoer-dette-hjemme/DMPV73000411/sesong-2/episode-1'
+    IE = NRKTVIE
+
+    def test_allsubtitles(self):
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['allsubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(set(subtitles.keys()), set(['no']))
+        self.assertEqual(md5(subtitles['no']), '1d221e6458c95c5494dcd38e6a1f129a')
+
+
+class TestRaiSubtitles(BaseTestSubtitles):
+    url = 'http://www.rai.tv/dl/RaiTV/programmi/media/ContentItem-cb27157f-9dd0-4aee-b788-b1f67643a391.html'
+    IE = RaiIE
+
+    def test_allsubtitles(self):
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['allsubtitles'] = True
+        subtitles = self.getSubtitles()
+        self.assertEqual(set(subtitles.keys()), set(['it']))
+        self.assertEqual(md5(subtitles['it']), 'b1d90a98755126b61e667567a1f6680a')
+
+
+class TestVikiSubtitles(BaseTestSubtitles):
+    url = 'http://www.viki.com/videos/1060846v-punch-episode-18'
+    IE = VikiIE
+
+    def test_allsubtitles(self):
+        self.DL.params['writesubtitles'] = True
+        self.DL.params['allsubtitles'] = True