Black screen/flickering with Apple TV 4K

Black screen/flickering with Apple TV 4K!!!

With the Apple TV 3rd generation I didn’t have this problem and now I do with Apple TV 4K. What I had to do was change the format lower and lower until it went away. I had to set my format down to 1080p SDR 30Hz. Do I really have to do this? I have a 2013 Sony Bravia 70”.

Apple TV 4K, tvOS 14

Posted on Feb 21, 2021 10:23 PM

Question marked as Top-ranking reply

Posted on Feb 22, 2021 4:06 AM

2013 Sony Bravia 70”

That should support 1080p/50 Hz or 60 Hz (use 50 for PAL countries and 60 for NTSC countries).

It doesn’t matter much if you set it to 30 Hz, as most videos will not exceed 30 Hz anyway. Movies and “cinematic” TV shows will often even be 24 Hz (fps).

I would recommend setting Match Framerate on Apple TV, if your TV supports it, to not have two devices make separate video adjustments.

Make sure to use a ‘High-Speed’ HDMI cable (rated 10 Gbps or better), as lesser certified cables may not have the needed support for maximized options.


I tried 720p 60 Hz but that made the screen smaller.

Expected behavior would be for the TV to scale any input resolution to match the screen size (i.e. larger pixels). Verify your TV settings – this is not something that can be configured on Apple TV.

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2 replies
Question marked as Top-ranking reply

Feb 22, 2021 4:06 AM in response to Community User

2013 Sony Bravia 70”

That should support 1080p/50 Hz or 60 Hz (use 50 for PAL countries and 60 for NTSC countries).

It doesn’t matter much if you set it to 30 Hz, as most videos will not exceed 30 Hz anyway. Movies and “cinematic” TV shows will often even be 24 Hz (fps).

I would recommend setting Match Framerate on Apple TV, if your TV supports it, to not have two devices make separate video adjustments.

Make sure to use a ‘High-Speed’ HDMI cable (rated 10 Gbps or better), as lesser certified cables may not have the needed support for maximized options.


I tried 720p 60 Hz but that made the screen smaller.

Expected behavior would be for the TV to scale any input resolution to match the screen size (i.e. larger pixels). Verify your TV settings – this is not something that can be configured on Apple TV.

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Black screen/flickering with Apple TV 4K

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