TV :
4K HDR TV is required.
Keep your backlight=100(default), brightness=50(default), contrast=50(default), sharpness=0(default) or 5-10, colour=50(default).
Dynamic Contrast=Off.

PC :
Use MPC-HC (K-Lite Codec Pack Mega). Set "MPC Video Renderer" as Renderer (Options > Output > DirectShow Video).

Mobile :
HDR Screen is required.
Use "MPV Android" app (Playstore). Don't use VLC/MX as they create black crush issue in HDR playback in most Android Phones.