Screenshots 1 and 3:
you are still on the settings for the ‘Personal Media’ agent, which isn’t relevant here.
You must click on Plex Movie, TheTVDB and The Moviedatabase and repat the agent reordering there as well.
It also doesn’t really matter which software you are using to rename your files.
The files themselves are quite alright as they are.
But I am asking you to add the (year) also to the folder name of the old show.
After a mismatch and subsequent renaming of files and folders, you must perform the Plex Dance