I've never had a flat screen TV before. The largest I can accommodate is 43". My viewing distance is ~110" and I cannot change that due to how the room is configured. I've been reading up on viewing distances and see that my current distance seems to be OK for HD (1080p), but is too far away to get the benefits of UHD (4k). Most reviews I've read indicate that for a 43" screen anything more than 4' means that you won't even see the benefits of UHD. Should I stick with HD? (My current TV is a CRT and if it weren't for the fact that my receiver is dying (which doesn't have HDMI), I wouldn't even bother getting one.