How can I remotely sign-out of a Samsung Smart TV with an Apple TV app that was signed in with my account?

Hi, Alexander,

Thanks for visiting the Apple Support Communities. It sounds like you were using the Apple TV app on a smart TV, and forgot to sign out before getting rid of the TV. We're happy to help!

You can remove your Apple ID from devices remotely following the steps here: View and remove your devices that are associated with Apple ID purchases - Apple Support.

Have a wonderful day!

You're very welcome!

Cheers!