Apple TV 3rd gen

Hello there, nader105!

Thanks for reaching out to the Apple Support Communities! It sounds like you have an issue with YouTube freezing on your Apple TV when you pause a video. Check out this article If you can't stream or watch movies or TV shows from the Apple TV app, iTunes Store, or third-party apps. This article will give you the steps you can take for issues streaming videos on your Apple TV, as well as the next steps to take if you continue to have issues.

Best regards.