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!
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.
Intel Core i7 8700K | 32 GB DDR 4 PC 3200 | ROG STRIX Z370-F Gaming | Nvidia RTX 2080 Ti 11GB VRAM | Asus PG27UQ gaming on 3840 x 2160 @120 Hz GSYNC HDR| HTC Vive Pro :3
Reached PC Masterrace level.