We bought an Apple TV device from someone who did not erase his name and password. How do we fix that?
We bought an Apple TV device from someone who did not erase his email or password. How do we fix that?
Apple TV HD, tvOS 16
Question marked as
The related article describes that exact scenario: Reset to factory settings.
Reset or restore your Apple TV to its factory settings - Apple Support
Then the Apple TV box can be set up again, “as new”, from empty.
Resetting is recommended for all devices that get a different/new user.