Im at a hotel and i connected my appeltv up and watched a baseball game with the mlb docker. Worked great, absolutely perfect.
Then i decided to watch some OTA recordings. Every 30-60 seconds i get a bunch of dropped frames with pixelation. Looking at my pfsense router i realized that tailscale was connecting through DERP so I enabled external access. Without tailscale connecting externally, the same problem happened. The internet in the hotel is 10mbit so i turned on transcoding to see if it was bandwidth related. After i did that the problem happend more frequently.
As a test I replicated the same scenario on my android phone and the same OTA content plays perfectly. So its definitely a TVOS issue.
I uploaded diagnositcs from the ATV. here is a video of the problem.