Plex → Data from TMDB
Jellyfin → Data from TMDB
Trakt → Data from TMDB
Want to know why my media is messed up?
I have had no problems with sonarr using tvdb because the episodes more or less matched with tmdb and I could manually correct the ones which weren’t. But the new Doctor Who series pushed me over the edge. It’s a different series officially, and TMDB has it as a different series too. TVDB doesn’t, they have the episodes in the 2005 series. The media players will never recognize the episodes since they are not part of the old Doctor Who series.
TVDB’s forums have ceased to exist, and they never reply to the support tickets.
This is just the start. Good luck everyone!