These are Apple IR codes generated with IRScrutinizer. Note that you can also learn codes into ATV 4K from another remote. I've been working recently with ATV and have gathered a lot of information that I thought I would share.

Check out this thread.

[Link: remotecentral.com]

Thanks Lyndel. I'll check it out.

Hello all. I just upgraded to TVOS 14.2 and am running into an issue.

It seems that if you use the Learned 'Stop' button to put the Apple TV to sleep, I am experiencing an issue.

After putting the unit to sleep by sending 'Stop' with a duration of 2.5s, I wake it up by sending 'Menu'.

After it wakes up, I then select 'Settings' -> 'Remotes and Devices' -> 'Remote App and Devices' , you get to a blank screen. At this point, you should be able to send 'Menu' to go back to previous page. The ATV 4K is not accepting 'Menu' in any case to go back.

Hopefully, if someone else is having this issue, they will chime in here.

Update. They fixed the Power Off/Menu issue with TVOS 14.3. However, 'Stop' no longer works to power off the unit and a long press of 'Next' no longer works to show the 'Home' screen.