Apple TV 4K Picture/Sound Delay?

Same issue here, which I brought up in another thread.

I thought it was caused by me and since I had selected the audio output to be PCM the audio was missing at the start of YT videos and Ads.

Then after having the ATV powered off for a few weeks (start of August) the cutting out became both the audio and video. I set the audio back to Dolby D and nothing changed.

Suggested here to disable the Match Frame rate and Match Dymanic range, which stops the cutting out happening. That is a workaround....

BUT

That results in a less perfect picture and manual frame rate selection, which used to work perfectly well a few months ago...

APPLE > when will this be fixed..???

Yep. I have a similar issue. I see the ad or video without sound for 2 secs. The screen goes black for 2 seconds. Video comes back without sound for about 2 seconds then the video starts. Every video, every add. Apple for screwed something up for so many people to have the same or similar problem

1.     Unplug your modem from its power source and Restart Modem.

2.     Unplug your router from its power source and Restart router.

3.     Unplug Apple TV from Power for 2-3 minutes – re-plug in and retest. 

This may be a problem regarding your TV / Apple TV settings.

When the Apple TV is outputting 4K HDR, and if your TV is capable of it, there is usually a delay or black screen for a few seconds on some TVs when switching the dynamic range to the videos' dynamic range.

Try going to Settings > Video and Audio > Match Content and from there, turn off/on "Match Dynamic Range"

If that fails to work, go to Settings > Video and Audio > Format and switch to SDR instead of HDR.

Hope this helps, this happens on ours all the time.