So I just bought a sharp LCD from a friend. It is a very simply model. I currently have Fios at home. So here is the deal. When using the red white yellow cables all the channels including the HD ones were available. Yesterday I went I bought some component cables and hooked it to the tv, the TV does not have and HDMI jack, the picture was awesome, but when I went to the HD Channels the TV read unavailable. Does anyone know what I did wrong. Thanks.