CoolHandLuke – stick with your Panasonic Plasma. I can confirm that current LCD screen technology – including a 4k telly upscaling an SD or HD picture is not a patch on a Panasonic Plasma. There are only a couple of times in the history of the human race we actually took a step back. One was of course when Concorde was pulled out of service, the other is when Panasonic stopped making Plasma screens. I’m not even keen on OLED – way too bright and colourful, farm more than real life, just look a bit cartoonish to me.
My only appeal to the OP is, please, please, please don’t go for curved. The sooner this ridiculous gimmick is consigned to the scrap heap the better.
Go for the better quality displays your budget allows, so that means the premium brands like Sony, Panasonic and Samsung (maybe one or two others). The screen may or may not be 4k, but will probably have smart features. I’m a Panasonic fanboy and they do about three or so panels at different qualities which are included in the model number of the set, so do a bit of research to decode the model numbers as that will tell you which model will have the better displays.