Which folder has been added to the tv shows library?
It must be /mnt/plexMedia/TV.
Not one folder level above, nor below of that.
Check the properties of this library.
On the Advanced tab, disable “Prefer local meta tags” if it is checked.
You can also try to help Plex to better match the show, by including the year in the folder name. Like that /mnt/plexMedia/TV/Little Rascals (1922).
Perform the Plex Dance
Once the show has been scanned, go to the top level of it
and Edit it.
Go to the Advanced tab and set the “Episode ordering” to “TheTVDB (aired)”.
Then Refresh Metadata of the whole show.
