Everything is hooked up correctly according to the guide and I was receiving a very good signal and picture with Tivo. I then used my dvd player and afterwards I got a black and white picture with one tuner and a grainy picture with the other. I restarted Tivo and this corrected the problem until I watched another DVD. Tivo went back to the poor signal and restarting does not help now.
Anyone have a clue as to what is going on and how I can fix this?