Yes, this is looking very good.
Now, when you edit your tv show library,
go to the ‘Add Folders’ tab, which paths do appear there?
It should be only H: and I:
You must not add the folders individually - e.g. H:\Doctor Who (2005) must not appear there.
I personally recommend to use 2-digit season numbers.
Now that you have conformant folder and file names, perform the Plex Dance with the whole show.
When you add the shows back, make that the classic show also has the (year) in the foldername. Add first the classic show and let Plex update the library in full, before you add the newer show in a separate step.