Facing TV Problems? Ask a TV Technician.
Hello, I'm Shahid.Sorry to hear that you're having trouble with this but I'll do my best to help.
Have you tried to disconnect power cords of Tivo box and TV from wall socket for 10 minutes to reset, reconnect power cords, turn them On and check?Please reply back with the result.
Above reply was a suggestion, have you tried that?
Most of the times it works.