My LCD (Liquid Crystal Display) an HD TV. I know that if you have a low quality signal going into an HD TV its not HD. Kinda like makin a color tv play black and white. But I have a converter box which picks up the new HD over the air signal instead of analog. Remember analog got shut off in the switch to DTV. Anyways that HD Channel gets put through the typical yellow, white, and red AV wires into the TV. IT looks clearer than my HDTV plugged into the Dish from Dish Network.