Ken F said:If you have a LCD, DLP, or plasma, DVI can offer a noticeably better picture than component. How much better will depend on the particular display model. If you have a traditional CRT-based television (like Lem52's Mitsubishi), DVI offers minimal to no improvement over component.
The benefit of DVI for digital sets (like LCD, DLPs, and plasmas) is that the signal can be kept entirely in the digital domain, without any analog conversion, direct from set-top box to the display. With CRT televisions, the digital signal must be converted to analog for display, so there will always be some D/A conversion taking place; with component, the conversion is done by the box, while with DVI, the conversion is done by the television.
Ken,
this "all digital pathway" argument is theoretically correct but in practice the results vary because there is more to PQ than just digital vs analog. Some people with plasmas report (see AVSForum) no difference between DVI and component (especially on ED displays) some report minor improvement with DVI.