Re: HDTV at 8k! Just wow!
My last TV was pulled out of a skip, worked for 5 years after (until I dropped it) and had been in a school since at least the 90's before that.
For the HDTV replacement I bought, I would like (but don't really expect) the same sort of lifetime. Hell, I only bought HDTV because I *had* to as there was nothing else (I've been using "HD" monitor resolutions since Windows 3.1, but I don't need them unless I'm six-inches away from the screen, and I tend to stick the TV on the other side of the room).
I can't "see" HDTV at those distances (whether you can or not, that's a matter for the person in question - I *can't*). I sure as hell won't see 4k or 8k unless I knock down a wall to make a personal cinema (which isn't likely to happen given how little TV I actually watch, and how 0% of it would benefit from 4k/8k resolution).
As far as I can tell, the only people who'll use this are cinemas and movie studios. And I don't really care what they use to project the image, and I'm unlikely to notice if they had 32k, let alone 4k resolution, from the distance you watch a cinema screen from. Hell, I'd go back to old slightly-blurry film projectors if they offered a discounted ticket price for doing so.
Looks like one of those technologies that will linger in the professional market anyway while everyone else just tweaks their H264 or whatever settings.