So, I was completely wrong about 4K

[Peh]

SvennoJ said:

gcwy said:
There are still a lot of scepticism and misconceptions around it. 4K isn't a fad like 3D. It's the inevitable, next step forward in the progression of video quality.

I wish my cable company would catch on. Still sending 720p/1080i mpeg-2 shit and calling it HD. My 4K tv does an awesome job rendering all the compression artifacts!

1080p was never fully utilized. Modern 1080p tvs were perfectly capable of displaying 4:4:4 video, instead all video is still chroma subsampled to 4:2:0, which quarters the color resolution. 4K blu-ray only has 1920x1080 pixels for color (normal blu-ray 960x540). So even without the resolution increase you can still get 4x the color resolution on a 1080p tv with 4K blu-ray or streaming. (if that was supported, it's not)

Why does 4K look better on 1080p monitors than 1080p
 
https://www.youtube.com/watch?time_continue=2&v=kIf9h2Gkm_U

I guess we have to wait until 8K tvs to get full color resolution at 4K!

That "720p/1080i mpeg-2" is set in stone and won't change anymore. 

"1080p was never fully utilized. Modern 1080p tvs were perfectly capable of displaying 4:4:4 video, instead all video is still chroma subsampled to 4:2:0, which quarters the color resolution. 4K blu-ray only has 1920x1080 pixels for color (normal blu-ray 960x540). So even without the resolution increase you can still get 4x the color resolution on a 1080p tv with 4K blu-ray or streaming. (if that was supported, it's not)"

You get 1080p on bluray, but you won't see chroma 4:4:4 in video. One reason could be the way higher bandwidth and storage space usage and the other would be that the difference is subjective way too low to see. To fully utilize Chroma 4:4:4 on Full HD use a PC and play video games on it :) 

4k 60 Hz Chroma 4:4:4 10bit is only possible at HDMI 2.1 or higher. HDMI 2.0 cannot manage such image quality alone.