Not just that. OLED TVs nowadays have a screensaver that kicks in when it detects stationary image for more than a few minutes. They also shift the image aroun

Not just that. OLED TVs nowadays have a screensaver that kicks in when it detects stationary image for more than a few minutes. They also shift the image around by a few pixels to prevent logos and tickers from permanently marking the screen. And when turned off, they also try to level the brightness of individual pixels by displaying different patterns - again to combat "burn-in".