I'm on a TCL (series 6) and I get the same issue. When a scene changes, the picture "freezes" and then stretches out for a few seconds or it gets pixelated. The audio is fine though, and after 3-4 seconds, everything goes back to normal.
It's easily reproducible: the same scene change will always show the problem in exactly the same way.
It doesn't feel like a wifi issue, but I could be wrong. I'm able to stream Youtube in 4k without issue, same with Netflix.
Any way to diagnose this, like maybe get the bitrate of the video stream on Apple TV+?
I turned off HDR (through the secret menu), but the problem is still there.
I have the same issue. Tried with different shows, same result. Even my iTunes purchased Blade Runner 2049 copy has pixelation/freezing issues. My TCL series 6 65" is directly plugged into my router (no wifi). Internet download speed is 60 mbps. This has never happened while watching Netflix, Amazon prime or YouTube.
No idea on the source of the problem (but I'm betting it's a channel issue as all my other sources stream just fine on 4K HDR over a Gigabit connection). However, for those suffering this issue, the solution is simple (yet annoying): Reboot your Roku.
Right after reboot, Apple TV+ streams just fine. Stream something else from other sources, however, and come back to the Apple TV+ channel and BOOM! Pixellation.
Yes I did. Watched some Disney + then returned to watch a new episode of See and... the pixelation was worse than before. Couldn't watch more than 10 minutes. Oh well, I was hoping it was fixed...
Yeah, it seems it's an app bug and for some reason it doesn't like to share. Only partial solution right now is to reboot the Roku right before opening the Apple TV+ app
Funny, the common denominator for this particle issue seems to be TCL televisions / Roku TV. I too have this issue when scenes are transitioning but, only during SEE. The Morning Show, every episode, fine. What makes it all that much more unbearable is the fact that SEE's cinematography is so beautiful. Worst show to have this issue with.
FIX IT, **bleep** IT!!!!