Delete tv show from Apple TV+ app on Roku device

Hello Lcgreenwald,

Thank you for participating in the Apple Support Communities! We understand that you're wanting to delete content from your Library in the Apple TV app on your Roku.

The Library screen in the Apple TV app includes purchases and rentals made with the Apple ID that you're signed in to. On supported devices you can delete the download of movies and TV shows that appear in your Library following the steps here:

Delete music, movies, and TV shows from your device - Apple Support

The steps above remove the download but do not delete the item from your purchase history. If you'd like to prevent a movie or tv show from appearing, consider hiding it instead:

Hide and unhide music, movies, TV shows, audiobooks, and books - Apple Support

Cheers!