I haven’t upgraded my TV shows library to the new Plex TV Show Agent. I prefer to use the Legacy tv show agent (specifically thetvdb). I’ve been using the thetvdb id to fix match and find shows.
As of the newest update, thetvdb agent has not been working.
Use the Plex agent. There is ZERO reason to not use it. The Plex agent incorporates both TVDB and TMDB and the information is the same and you can differentiate between TVDB and TMDB inside the Plex agent.
So the best advice is NOT:
Upgrade your libraries to the Plex agent and be done with it.
My biggest concern is album art. I have custom episode art for more than 50% of the tv shows (which i have over 60k episodes total). Im worried that if I update to the new agent it will reset all my album art and i would have to fix it all again.
But to echo sixxnet, yes, the “real” fix would be to move agents, especially since Plex has indicated that the legacy agents will eventually be going away, so better to get ahead of it than to eventually have no other option.