It may be possible, depending on how integrated the Tivo's DAC is to the rest of the circuitry. If it has a separate DAC chip from its decoding chips, etc., then it probably is possible. Depending on the format going to the DAC, it may even work with the stock boards. We did however try to use the boards with a Rio Receiver and never were able to get it to work right. We never were able to get to the bottom as to why they didn't work properly in that application.

Stu