AppleScript to auto delete TV shows after watched

I'm looking to create an AppleScript that can auto delete a TV show after it has been watched. According to the AppleScript Editor Library, iTunes has an unplayed property. My issue with unplayed is that if the script runs and a TV show has been partially played (I'm halfway through a show), then the show will be deleted based upon "unplayed = false" logic. I need it to delete only after the show has been marked as "Watched". Has anyone done this yet or have any ideas on how to create a script that will work? Thank you!