Here’s a few to try
If you have a lot of TV series to rename you can try this program
Link to post (Free TV Episode Renamer)
People also use one called tinyMediaManger https://www.tinymediamanager.org/download/
I think that one has limitations on what it can do for the free version but I haven’t used it, so I’m not what they are.
Filebot is another alternative
Get your basic file structure down and just add a few TV shows then a few movies to the movies folder and make sure everything is working ok
