Since the 7 series, LG has increased the red sub pixel size to combat burn in (2018 models and newer). I'm not saying burn in is not possible. People who watch CNN all day long, every single day, definitely increase their chances of burn in, and should probably consider a LCD tv. And according to the rting test results it would take someone a few thousand hours of watching CNN to get burn in (tested 7 series). B6 models got logo burn in around 500 hours, C7 was around 3000 hours, so oled panels from 2018 and onward, burn in protection should be much better. Is it still possible to burn them in (technically burn out), sure I guess, but for the majority of people, gamers included it's a non issue at this point.
I've personally seen 2 Vizio lcd's experience led's burn out in a few zones, resulting in the tv having to be trashed, 3-4 year old sets. My 75" Sony 850D LCD began to develop white spots on the screen, an issue between panel layers. I've had 2 Pioneer plasmas for over 10 years now, heavily gamed on them, no burn in. I have 1500 hours on my B7, no burn in, and I run slides periodically out of curiosity. FYI, I run my B7 at OLED light 35 for SDR content, which is around 135 nits, which is still higher than the SMPTE standard. If that's still not bright enough for someone, OLED light of 66 is 200 nits for SDR content. If you're viewing SDR content higher than 200 nits just buy a cheap LCD, OLED's contrast benefits don't matter and you're probably cranking brightness to combat a bright room environment.
Anyways, my point is burn in is always blown out of proportion. But if it worries people enough, just get a LCD, it's not a big deal, and those sets can have their own issues.
