Let me explain something- The digital box doesn't magically give your TiVo the ability to record digital channels off the air. The digital converter box is an external tuner that will allow your old TiVo to more or less continue functioning. The external box will now work like a cable box, meaning it has to be on the channel the TiVo is recording because the converter box is now your TiVo's signal source. (If you hooked everything up correctly.) Go into detail and explain how you connected the converter to your TiVo and how you set the TiVo up to work with it. Until you do that we can't help you. By the way- You say the TiVo is correctly changing channels on the digital box. You're also saying the TiVo isn't getting any picture or sound from the box. From the sounds of things, you set the TiVo properly where CONTROLING the box was concerned, but you did something wrong in setting up the connection between the converter and the TiVo. I'm guessing you left the TiVo thinking it'd get a signal on channel 3 thru the antenna cable, but you hooked the box up to the TiVo using the audio/video cables. Maybe you did the opposite. Did you hook the box into the TiVo's antenna input, but set the TiVo to look for an audio/video feed from its RCA jacks? Again, explain VERY carefully step by step each thing you did. Then we can start sorting this out.