to simplify the whole component thing. using the component output on a standard definition t.v. will give the best picture, meaning better color and picture because the three colors are isolated better from interferance and get a better connection etc. using the same component output on a edtv or hdtv (enhanced and high definition) will result in a progressive scan. and all the progressive scan signal is is a 480 progressive signal. to be hd it has to be 720p or 1080i or 1080p. so what 480p does is draw all 480 lines of resolution at one time instead of one pass of odds and one pass of evens like analog tv's do. resulting in a sharper more detailed picture but not of hd resolution.* whew*