Hi, I recently got an upgraded Motorola DCH3200 receiver from COX for my HD TV. Now my original Tivo cannot change the channel on the Motorola receiver because the new receiver does not have a serial input port that I can use for this purchase. If I purchase a HD Tivo box, how should I connect the Motorola receiver to the Tivo so that I can change channel by using the Tivo remote control?
The setup that I used to have is:
Wall -> Motorola receiver -> Tivo -> A/V receiver -> TV
I used to have a serial cable that connected the Tivo to the Motorola receiver so that I can use the Tivo remote control to change channel on the Tivo, which in turn sends the channel change signal to the Motorola receiver through the serial cable.