How to reset an Apple TV after a split, sale, or other change

Apple TV apps, just like those in iOS and iPadOS, retain registration information about the initial downloader.
apple tv 4k
Apple
    Related:
  • Streaming Devices
  • Consumer Electronics
  • Apple TV
  • HomeKit
Glenn Fleishman’s most recent books include Take Control of iOS & iPadOS Privacy and Security, Second Edition (covering iOS 15/iPadOS 15), Take Control of Your M-Series Mac, and Take Control of Securing Your Mac. In his spare time, he makes Tiny Type Museums. He’s a senior contributor to Macworld, where he writes Mac 911.