I just purchased an LCD television which is HD compatible. For the last few days I have had it set up withouth a set top box for the cable. I connected the cable from the wall directly to the TIVO and everything worked fine. Today I got a Motorola HDTV set top box from Comcast. When I came home from work the technician had connected the set top box directly to the TV and disconnected the TIVO. I tried to hook the TIVO up the same way my other Series 2 is setup with the yellow, red, white RCA cords from the output of the cable box to the input on the TIVO, but the TIVO will not display television. I also tried to do it with the coaxial cable and that didn't work either. The TIVO displays all prerecorded shows, but I can't get it to show live TV. Any help would be appreciated, please keep it simple and I apologize in advance for my ignorance.