I have Pioneer plasma receiver, dvr box, Bose surround. I tried to replug everything and I have sound, can record but only a black & white picture. I know it's something abput the red, blue green cables but can't any combo that brings back my color picture. Please Help!

Also I'd love to hook up a Roku for MLB package but when I follow directions I don't get the screen on my TV that has Roku logo to sign up, etc. Any ideas here?

If you are using red, blue and green cables(component video)
Connect the red, blue and green for the video, and a separate red and white for audio. Don't mix up the reds. Good Luck
Verify your source or input(composite, video, HDMI, etc.)