FYI… external ids added at tmdb to both imdb and tvdb for all episode.
BTW… if you look here Beauty and the Beast - Unknown - Season 3 - TheTVDB.com at the dvd order you will see S03E01 is listed twice which could be why you are referring to S03E08 and its listed as S03E07. This series is locked at tvdb so someone (not me) will need to create a forum report at tvdb to have this fixed.
In the mean time, I’d recommend waiting 48/72 hours for my edits at tmdb to make their way into the plex metadata backend and then I’d suggest renaming your S03E01-E02 to S03E01 and adjust the episode number for the rest of your media files. Then plex dance the show and (fingers crossed) at that point it should pickup the correct metadata for each episode.
