It might be me or indeed probably PLEX but if you select movies all your TV shows are in there aswell and vise versa, Is this just incompatibility with plex?
Cheers
Has to be a Plex issue. I am not a Mac user so I canĀ“t check.
If you're using Plex it's probably best to ask on their forums:
http://forums.plexapp.com/
If you are using XBMC, then version, platform, skin etc would be helpful.