Question about Sony UBP-X800M2

Every person has different sensations when viewing colour/contrast/light/dark, colours are also mediators of feelings. Since there is no relevant difference between Dolby Vision and 4K HDR (may also be in the very personal eye and perception of the viewer!) and the dispute between the "inventors" is turning to good account, Sony X800 has 4K HDR for the picture. In terms of sound, the player is equipped with Dolby Atmos, but this also requires a special loudspeaker system (each loudspeaker is controlled individually, even on the ceiling (i.e. no simple left/right arrangement). Important decision: buy the right TV set that meets all current requirements, including HDMI2.