How do I Remove user from apple tv
How do I remove a device from my apple tv list? I stayed at an airbnb and forgot to take it off the smart tv
You can sign out remotely through one of your Apple devices. Then the next time someone tries to access Apple TV content that requires authentication on that Airbnb device, it will ask for the password (which they won’t have for the last used account).
Check your Apple ID device list to find where you're signed in - Apple Support