So I just bought a brand new “dumb” TV for $150 off of Amazon (43" 1080 Sceptre). It isn’t high end in the slightest, but it IS brand new and not some weird old stock and the picture and sound don’t feel too far off from my significantly more expensive higher end LCD TVs. I wanted one that I could put on a rolling stand and move between a few rooms and saw no benefit to 4k at that screen size. Other than that, there are some decent “digital signage” TVs that were decently priced available as well from Samsung and a few other brands. I didn’t see anything that was OLED, but I was burned hard (quite literally with burn-in) on earlier OLED gear, so I am avoiding it until the prices get low enough that I can be fine with the chance that it will be crap after 4-5 years of use.
Try “lcd tv non-smart”, “lcd tv hospitality”, or “lcd business tv” or any variations thereof.