two tv show with the same name

hi i have two tv shows with the same name called the odd couple one has 3 season one has 5 season but when i add them to plex there al go into one show showing doubles episode can you help please

Put the release date in both the folder name and the file names.

TV Shows <— The library points here
---------TV Show Name (Year first aired) <— This folder holds the season folders
------------------Season 01 <— This folder holds all the episodes for season 01
-------------------------Show Name (Year first aired) - s01e01 - Episode Name.ext
-------------------------Show Name (Year first aired) - s01e02 - Episode Name.ext
-------------------------And so on for the rest of season 01
------------------Season 02 <— This folder holds all the episodes for season 02
-------------------------Show Name (Year first aired) - s02e01 - Episode Name.ext
-------------------------Show Name (Year first aired) - s02e02 - Episode Name.ext
-------------------------And so on for the rest of season 02
------------------Season 03 <— This folder holds all the episodes for season 03
-------------------------Show Name (Year first aired) - s03e01 - Episode Name.ext
-------------------------Show Name (Year first aired) - s03e02 - Episode Name.ext

After you fix the naming you may need to perform the Plex dance:

Move all the files to where Plex does not see them.
Update the library in Plex.
Empty trash.
Remove bundles.
Move all the files back into your Plex library.
Scan the library again.