Very useful information. Right now, the largest TV I would feel comfortable with, without going too big is 50". Currently I got two new TVs the end of last year. I had a 42" Plasma from Panasonic, and a 32" from Sony, which I gave to family and friends that needed new TVs, and replaced them with a couple new Sony models:
SONY XBR-43x800D for the 4K and HDR set
SONY KDL-48R510c for a standard 1080p set
I find both sets to work well for my current needs. My main goal at this point is to let the new standards mature a couple years before deciding on any more upgrades.
I am looking forward to getting an OLED at some point, but currently what's offered is too large for me. Wanted to mention that I rarely watch TV in the dark, so the light in the room also helps deepen the blacks from an LCD, and really a good LCD, and the correct settings produce a great picture.
Wanted to mention in closing that the two biggest dislikes I have about current TV offers are:
Being forced to buying a smart TV
Not many manufactures use a center stand vs the new legs at each end.
For the smart TV comment, I feel that having a dumb display and having the external devices manage the content is more professional, and reliable, and you're not stuck with stuff you don't want built into the TV itself, plus it just gives more opportunity for something to go wrong.
Regarding the stand, it just makes the TV fit easier into certain spaces with the stand vs the legs.
Hope this information was useful. Have a great day!