ok so I probably sound silly asking this but ... i just bot a new HD tv and my dvd player doesnt seem to work. There are tons of white and red plugs on it and a couple green and one blue. I tried plugging the yellow cord into the green and the video was only black and white and any other hole didnt work at all... what am i doing wrong???
the back looks like this...

r w coax r w

r w r w b g
r w r w b g