So I put a disk of a season of The Office in my computer, and I want to add the files to my TV Show Library in iTunes, but on hitting command+O it won't stop adding it to Movies!
There are tags connected to everything in iTunes to label it and categorize it within the program. It's the same as the Get Info window for normal files.
Right click anything and choose Get Info. Click through the tabs at the top until you find the one with the option that lets you change the media type to a TV show. You can then add the show name and episode number in the Get Info window or from the list when they're put there.