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Benz63amg

macrumors 601
Original poster
Oct 17, 2010
4,222
853
I have a 1080p Samsung 120hz tv, Should Apple TV be set to YcB or RGB High in the settings menu?
 

-Gonzo-

macrumors 65816
Nov 14, 2015
1,469
805
Which one looks better?
If you can’t tell any different then just leave it to what it was originally.
 

Benz63amg

macrumors 601
Original poster
Oct 17, 2010
4,222
853
Which one looks better?
If you can’t tell any different then just leave it to what it was originally.
I can’t tell a difference but I don’t know what it was set to by default either
 

-Gonzo-

macrumors 65816
Nov 14, 2015
1,469
805
I’d guess the default will be the one that’s the top of the list.
 

-Gonzo-

macrumors 65816
Nov 14, 2015
1,469
805
Default is YCbCr, though it doesn’t really matter if you use either of the other two settings as long as you match them with the TV.
C0F51E7F-3CD8-4435-930D-E3318ED95E26.jpeg
 

Benz63amg

macrumors 601
Original poster
Oct 17, 2010
4,222
853
YcB is default and 9 times out of 10 it's fine with a TV. RGB usually for monitors and odd TV sets
What could possibly cause the black/grey section of the Apple TV menus to very lightly flicker and absolutely NO flicker to be present during actually content playback on the Apple TV? It’s driving me crazy.
I have a 1080p Samsung lcd and the Apple TV 4.
 

nutmac

macrumors 603
Mar 30, 2004
6,103
7,504
YCbCr setting is the preferred for video playback, as nearly all movies, TV series, and sports are encoded for 4:2:0 YCbCr color space.

If you have a reliable and fast HDMI cable (at least 20 Gbps, but 40 to 48 Gbps if you want 120 Hz), I would just set it to YCbCr 4:4:4 for maximum uncompressed video signal over HDMI cable.

If you have a slower cable (20 Gbps or less) or watching primarily video contents, set it to 4:2:0. Games, non-video apps, and Apple TV UI may look more vibrant, sharper, and free of artifacts with 4:4:4. 4:4:4 on slower cable can cause issues, such as flickering and artifacts.

You should only pick RGB output with Apple TV if your TV cannot handle YCbCr correctly. (RGB is primarily meant for computers and some gaming consoles.) You can choose RGB High (full 256 shades for each colors) on most modern TVs. Some TVs do not handle the full range well, which is why RGB Low exists (219 shades).
 

Benz63amg

macrumors 601
Original poster
Oct 17, 2010
4,222
853
YCbCr setting is the preferred for video playback, as nearly all movies, TV series, and sports are encoded for 4:2:0 YCbCr color space.

If you have a reliable and fast HDMI cable (at least 20 Gbps, but 40 to 48 Gbps if you want 120 Hz), I would just set it to YCbCr 4:4:4 for maximum uncompressed video signal over HDMI cable.

If you have a slower cable (20 Gbps or less) or watching primarily video contents, set it to 4:2:0. Games, non-video apps, and Apple TV UI may look more vibrant, sharper, and free of artifacts with 4:4:4. 4:4:4 on slower cable can cause issues, such as flickering and artifacts.

You should only pick RGB output with Apple TV if your TV cannot handle YCbCr correctly. (RGB is primarily meant for computers and some gaming consoles.) You can choose RGB High (full 256 shades for each colors) on most modern TVs. Some TVs do not handle the full range well, which is why RGB Low exists (219 shades).
Thank you. What could possibly cause the black/grey section of the Apple TV menus in my personal set up to very lightly flicker and absolutely NO flicker to be present during actually content playback on the Apple TV? It’s driving me crazy.
I have a 1080p Samsung lcd and the Apple TV 4.
 

nutmac

macrumors 603
Mar 30, 2004
6,103
7,504
Thank you. What could possibly cause the black/grey section of the Apple TV menus in my personal set up to very lightly flicker and absolutely NO flicker to be present during actually content playback on the Apple TV? It’s driving me crazy.
I have a 1080p Samsung lcd and the Apple TV 4.
Several things you should try:
  • Different HDMI port.
  • Different HDMI cable.
  • YCbCr with different subsampling values.
  • RGB Low.
  • Lower the refresh rate value.
 
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