Fix shows that were "stuck" and wouldn't update because of deleted seasons on...

Fix shows that were "stuck" and wouldn't update because of deleted seasons on TVDB (Parks & Rec, It's Always Sunny, Futurama, etc etc)

sickbeard/tv.py

@@ -228,13 +228,18 @@ class TVShow(object):
 
         cachedShow = t[self.tvdbid]
         cachedSeasons = {}
+        deleteEp = False
 
         for curResult in sqlResults:
 
             curSeason = int(curResult["season"])
             curEpisode = int(curResult["episode"])
             if curSeason not in cachedSeasons:
+                try:
                     cachedSeasons[curSeason] = cachedShow[curSeason]
+                except tvdb_exceptions.tvdb_seasonnotfound, e:
+                    logger.log(u"Error when trying to load the episode from TVDB: "+e.message, logger.WARNING)
+                    deleteEp = True
 
             if not curSeason in scannedEps:
                 scannedEps[curSeason] = {}
@@ -243,6 +248,11 @@ class TVShow(object):
 
             try:
                 curEp = self.getEpisode(curSeason, curEpisode)
+                
+                # if we found out that the ep is no longer on TVDB then delete it from our database too
+                if deleteEp:
+                    curEp.deleteEpisode()
+                
                 curEp.loadFromDB(curSeason, curEpisode)
                 curEp.loadFromTVDB(tvapi=t, cachedSeason=cachedSeasons[curSeason])
                 scannedEps[curSeason][curEpisode] = True