I will be moving in January into a bigger house, and I will soon after buy a bigger TV, I only have one 32" TV now and I'll use that for my bedroom, but I'll need a TV for the living room, and I'm thinking of getting a 4K one as that seems to be the future, and I was wondering what size TV would you need to notice any difference between 1080p HD, and be able to appreciate 4K? I will probably at some point get a 4K blu ray disc player so I can get the new 4K movies, but still waiting to see if it here to stay, I think it is, but I am never an early adopter of technology lol, 4K TV I am confident is here to stay though. So I'm wondering would a 55 inch TV be large enough to notice a difference between 1080P and 4K? Or is it not really going to make any difference? If it won't I can just pick up a regular HDTV at Wal Mart for a cheap price. I currently have a Sanyo HDTV, that I got about 8 years ago and it has great picture, is Sanyo a good maker of 4K TV's?