Just to add a point that may not be obvious to everyone. Whilst 4K UHD is great, something which is equally important, if not more so, is HDR. High Dynamic Range. It adds greater range of lights to dark, higher saturated colors and more colors to the picture. It can be thought as such, if 4K adds better resolution by adding MORE pixels, HDR adds quality by adding BETTER pixels. Most 4K UHD TV's will have this, but maybe not all, so best to check before making a purchase. Many Netflix and Amazon Prime videos are HDR.