To allow Harmony to interact with your Apple TV, you must send an "unlink" (or "unpair") command. You may send this using your Harmony remote. Using a Harmony remote. Navigate to the Devices menu on your Harmony remote LCD screen. Select Apple TV, and while pointing your remote at your Apple TV …
Feb 06, 2017 Lost Apple TV Remote - What Now? - YouTube Dec 26, 2018 Support trick: Automatically receive the IP addresses of In practice though, this only happens if, whenever Uncle Franco asks for help, I can get the current IP address of his computer without asking him (if you don't know what such addresses are, see How to manually update DNS settings on your Apple TV | iMore Feb 09, 2015
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Mar 24, 2020 How to Find the IP Address of Your Apple TV - iClarified
What to do if you lose your Apple TV remote - CNET
Aug 05, 2014 How to Find Your Apple TV’s IP and MAC Address Nov 27, 2015