Will the 4k 8k thing take off because I remember 3d, bbc were starting to broadcast stuff in it and then dropped it. There were lots of showcase vids on utube that were amazing but it seems to of died. I did not buy my tv because it had 3d but at the time big 55 inch tvs - you could not buy one without 3d.
The majority of jobs we supply cameras for at work are 4K or above for HD cameras. Film has always been very high detailed resolution anyway, they always have, but we never had the tv's to show it off in the past.
Now we do, which is why we can see really old feature films on tv that more or less look like they were shot yesterday.
So from a viewing point of view, and to future proof yourself (for a while anyway) then if you're buying a new telly then buy a 4K one, even more so as they're so damn cheap right now.
People must understand too that not everything is shot using the highest quality available due to budget, whether that be a simple switch from 35mm film to 16mm, or to save money people will change a cameras pull down rate from 4 perforations per frame of film, to 3 perf, and occasionally even 2 perf, to save money on film stock. The result, obviously, is a drop in quality, which will get noticed on a tv screen, especially the over sized ones.