I hate to come off as some kind of gibbering simp, but I use a 65" Samsung OLED for pretty much all my gaming needs, these days. The screen looks
gorgeous, and there are a wide variety of display modes that suit different systems very well. It's not a perfect device – Samsung's built-in UI is truly atrocious, and I suspect the slightest bit of input lag with certain platforms (mainly my Apple TV and PC connected through HDMI), but my PS4 and PSTV work beautifully on it.
Plus, it's friggin' phenomenal for watching stuff on! Built-in file support is spotty, though, so I'll probably need to pay for a Plex server in the near future If I want to watch pirated episodes of Beast Wars II.