LED TVs are basically LCD TVs with one significant difference - they use Light Emitting Diodes (LED) to backlight the screen. The bonus of an LED screen is how thin it is. They look great when mounted on a wall. Commonly available in sizes from 14" - 60". LED screens come in a wider range of sizes than say, plasma screens, and there is also a greater variety to choose from. They generally have a much brighter screen, pictures tend to look better under standard lighting conditions and they can often also double as a PC screen.