"Y,Pb,Pr" or "Y,Cb,Cr" or "Y,I,Q": I've seen all of these in reference to video, especially component video. Do they all mean the same thing, or is there a difference?

Steve13: If your system can take advantage of RGB, you should definitely use it. RGB are the real components of a video signal: no subtractions, additions, or manipulations are required to get "pure" red, blue, or especially green. An RGB (five strand) cable carries the three unadulterated color signals, plus the synchronization information which tells the monitor where a picture starts and ends, and a signal called "burst". The five together give you what is arguably the highest quality picture available in the home today.