My OLED TV is 4 years old in 4 days time. No problems with it so far. What sold it to me at the time was a combination of colour quality, response and blacks. As an emissive technology, if a pixel isn't lit, it isn't lit. LCDs have to block a backlight leading to not so black blacks and possible glow in dark scenes. I feel the main way to prevent non-reversible burn in is to keep brightness levels tempered. It doesn't need to be in a dark room like a projector, but I wouldn't pick one for a bright area that requires turning it up. BTW I don't use HDR. It is both good and bad. Good in that it doesn't have to use lighting zones like LCDs so bright and dark areas are better defined, but it doesn't reach the higher peak levels so the HDR effect is limited anyway. Maybe newer units are better in that area now.
