I substituted an inexpensive HDMI cable from my cable box to my SXRD HD TV, replacing component cables, and there was a marked improvement in clarity and detail. Not sure of the technical reasons (or if a better HDMI would be a further enhancement) but the difference was not subtle.
hdmi cable: are there different levels of quality?
will i see a vast differrence between RGB and HDMI? Is there a range of quality of these cables? ANy recommendations