@PR0J4N
you can read this post in reddit
https://www.reddit.com/r/anime/comments/8ktmvu/nerdpost_how_fansubbers_make_your_anime_look/
but in short more chroma means better quality when downscaling from 1080p to 720p. if your TV does not support 444 natively try to play it using a computer (MPV player is recommended) and a HDMI cable.
Comments - 2
PR0J4N
adnan