My HD Cable box has the three inputs Red/Green/Blue ((Pr/Pb/Y) with a component cable that exactly matches the back of my Samsung HDTV, but I want to put the new Magnavox DVD/VCR in the middle, and it only has the red/yellow/white plug ins... I am an electronic moron and I need HELP as soon as possible. Exactly what cable do I need to buy, and which ones go where?