#Check apple color mode rgb or ycbcr tv
Auto seems to change itself accordingly to match the Apple TV RGB setting, so I’m just leaving it on Auto. When done correctly, you can have 4K HDR DV 60 Hz within the bandwidth restrictions of HDMI 2.0. With the Apple TV in ycbcr mode, the tv HDMI black level setting is grayed out.-With the Apple TV in RGB High or RGB Low mode, the tv HDMI black level setting can be set to Auto, Low, or Normal. When the red pixel is set to a 0 value, the LED is turned off. Within each pixel in an LED monitor display, there is a combination of these colors. This makes a total of 16,777,216 possible colors. That includes the screen (TV), any equipment in between, the HDMI cables (18 Gbps recommended), the HDMI ports (HDMI 2.0) and the port configuration on the TV and any equipment in between, if applicable. I am wondering what setting I should have the AppleTV 4K setting when it is on 4K SDR. Blue The red, green, and blue use 8 bits each, which have integer values from 0 to 255. The video format settings that are selectable, is what is detected as compatible with the connected hardware.
Depending on other settings and content, 4:4:4 might cause other features to be dropped, to keep to bandwidth use under the HDMI 2.0 limits.
Thus the 4:2:0 chroma setting is recommended. Delivery format video files are always 4:2:0, so 4:4:4 would increase the bandwidth needs without quality improvement. YCbCr can use less bandwidth than RGB, freeing up more bandwidth for other features (resolution, frame rate, HDR). YCbCr doesn’t have High and Low variations, so you can’t go wrong there.
The video streams are encoded using the YCbCr color space, and your TV accepts YCbCr, thus no conversion is needed by the Apple TV box.
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