Also check your composite cables. Sometimes they go bad as well. I've had a few instances where this happened to me on various consoles. Another thing is to make sure the video cable that is coming from the back of the TV is plugged in securely and not being pushed around back there by wires or other obstacles. I don't know how old is your TV, but extended use of the video composite plug-in on the TV could also be the culprit. The actual plug-in hole can be loose. You can try moving the cord around back there to see if you get some color back.