HDCP shouldn't have anything to do with the chroma... 4:2:0 etc is more of a EDID issue. HDCP is a copy protection thing. I know that you say you've used quality HDMI cables, but what are they and have you swapped out for another brand?
This industry is not getting cheaper and cheaper, we're simply convincing ourselves that we have to push the cheapest option to customers. #makesonosgreatagain
