Why "Library Upgrade Required"?

[OttoKerner]

@OttoKerner

For TV shows which are not listed on TheMovieDB at all, you will very likely need to include their TVDB ID number in the folder name, as detailed here: https://support.plex.tv/articles/naming-and-organizing-your-tv-show-files/

Plex dance afterwards.

And make sure that you don’t have any additional, arbitrary sub folders which group several shows into a common “universe” or something.