I'm not sure how this is adding anything to the conversation. My grandmother cannot tell the difference between SD and HDTV, let alone 4K/UHD, yet the differenc

I'm not sure how this is adding anything to the conversation. My grandmother cannot tell the difference between SD and HDTV, let alone 4K/UHD, yet the difference is quite drastic to me and a higher resolution is certainly more realistic and immersive. Maintaining a visual experience that is as close to reality as possible is what sells the illusion. That's great that the bar is lower for you I guess, but not really helpful for literally the majority of the world.