The "burn" can damage the screens have phosphor-coated plasma televisions and CRTs are the most vulnerable. "Burn" or image retention effect can occur when a static image like a video game or logo of the station remains on the screen for a long period. Over time, this image can be recorded in the phosphor coating, leaving ghostly impressions on the screen permanently. The possibility of these "burns" can be reduced or eliminated by properly adjusting the settings for brightness and contrast of the screen.