Hey there littlelinzi,
Thanks for reaching out to the Apple Support Communities.
To get started, have you had a chance to go through all the steps listed in the 'Related Article', If you can't watch or stream movies and TV shows in the Apple TV app that was shared on this thread?
If so, it may be helpful to try resetting the Apple TV app. For steps on how to do this, check out this next link here: Reset the Apple TV app - Apple Support
If you’re having problems and the Apple TV app still doesn’t respond after restarting, try resetting the Apple TV app. When you reset the Apple TV app, all data is erased, including your accounts and configuration.
1. In the Apple TV app
, navigate to Settings.
2. Go to Reset, then select Reset.
3. Resetting the Apple TV app restores it to original settings and removes your personal information, TV shows, and movies from the smart TV.
Keep us updated on the results.
Take care.