I have Comcast cable and I am required to use the "digital transport adapter" as they just went all digital in my area. I do not have cable cards and previously was just fine getting the analog stations. The "digital transport adapters" are all set up and work just fine through the TV. BUT... when I connect it to the Tivo the signal is not passed through. I have the TV hooked up through Component cables as before. I have the TV set to channel 3. I have run Channel Scan each time I changed settings. I have run guided setup several times telling it that I had both antenna and cable and cable only. I cannot get a picture but I can see all the Tivo screens ie Now playing etc. So I know the component cable is passing that through. Is it me? What the Heck! Any help much appreciated.