Son_of_SJ said:
By that you mean, I assume, that all TVs that are now being sold in the shops are 4K (which is not quite right, I don't think - we on this forum are very much a minority), and many people, indeed most, are quite happy with Full HD, assuming that they've even heard of 4K. Further, you forget that the vast majority of TVs that are in people's homes right now, in late 2015, will not be 4K. Some of them may not even be Full HD resolution! The one in my bedroom (Pioneer 428XD) certainly isn't!
Same way black and white, and even cathode ray TVs in general, hung around for years after people starting buying colour and flat screens.
It doesn't mean that no-one's going to continue using them while they still work, there won't be landfills full of the things any time soon, but most major retail chains here in the US have all but stopped selling them.
Our kids "only" have 1080p sets, 40-inchers. When I was a kid the main TV in the house was a 625 line colour cathode ray tube job that weighed at least a hundredweight. If I wanted to watch one of the
three channels we could get I had to ask to
borrow the family 12-inch black-and-white, turn-the knob-knob-tuned, ran-off-a-car-battery portable. I didn't get a proper TV of my own until I left universtiy.
TImes change.