Video cutting out on Apple TV Box

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As the video signal seems to be affected, I would suggest to use the Reset Video Settings options, and then try again. Make additional changes for optimization or customization as needed, but test after each change and watch for the “cutouts”.

When you have the Match Content settings on, then short cutouts are expected when the TV need some time to adjust to changes in frame rate and dynamic range. Not during a show, but in between shows (or ad transitions). The very latest high end TV models should be able to do this adjustment very fast (new feature).

After doing the Settings > Video and Audio > Reset Video Settings... did you by any chance turn "Match Content" ON again? Apple's default settings are to configure vidio output to match the best resolution, frame rate and colorspace that your TV can handle, and leave it there. When Match Content is "Off", the TV is frequently forced to change video modes and most TVs go dark for a few seconds as it adapts to the new content's format.

My Apple TV 4K now shows the video correctly all the time on the channel I was having trouble with History channel). The only thing I did was go to Settings a couple of times and select Reset Video.

Update your Apple TV system software to the current version, if not done already. How to update your Apple TV - Apple Support

Try this for any misbehaving app:

1. Force-quit the app, then relaunch and try again.
2. If the issue persists, force-quit the app, restart the device, then relaunch and try again.
3. If the issue still persists, delete the app, re-download and try again.
4. If the issue still persists, then contact the app developer for further assistance.

I believe I have a similar issue. When watching The History Channel App and the Mountain Man series on my current gen. Apple TV 4K when I move to each next episode the sound keeps playing and progresses normally but the pictures goes black with the buffering rotating icon showing. The only way thus far that I can get the video showing is to pull the power cord on the Apple TV 4K and then plug power back in. The Apple TV goes back to the Home Screen and I have to select the History Channel App again and then select Play on the right episode. I wish I could find an easier solution.

I did delete the HISTORY App from my Apple TV 4K and reload it but still had the same issue with no video and the spinning icon whenever I tried to go to the next episode. Finally though I found something easier than unplugging my Apple TV 4K Device to get the next episode to play correctly. I don’t know if there are other remedies or not but what worked was “marking as watched” the previous episode and then selecting the subsequent episode. There must be an issue with data being retained during/after watching each episode. All my other Apple TV Apps work just fine, so it is unique to the HISTORY Channel.

By the way, this issue may only occur when watching Series 11 of Mountain Men (current series) where as that series doesn’t even show up unless you are a subscriber. I subscribe via my Spectrum Provider. There must be some handshaking going on between HISTORY and Spectrum within the App.

I thought I had found a workaround but it actually didn’t stop the problem. Since this started, we have only really been watching Mountain Men and now I’m on the last episode. When this is over I will double check some other apps to see if the problem is worse than I currently am thinking.

You’re welcome, and thanks for the follow-up. Enjoy!

I have exactly the same thing on my Apple 4K 3rd gen

It happens on all apps. I re set the Apple and it worked for a couple of hrs then back to cutting out.

After spending ages trying to figure out how to resolve this issue, this is the only thing that sorted it out. Thank you very much for the help!