I have an S2DT unit and a cable box/dvr (Motorola DCT-6412). They are separate, and I only use the TiVo for basic cable recording. I want to transfer a recording from the 6412 to the TiVo. I connected the S-video and analog audio outputs of the 6412 to the TiVo line level inputs and set the TiVo to channel 1. I could see and hear the 6412 output. I did a test recording, and it worked. I then set up a timed recording on the TiVo and told it to record off of channel 1. When it hit the time, the TiVo changed to channel 1, and "Cab" appeared as the descriptor. It told me it could not find the basic cable signal. Like a fool, I tried channel 0 using the composite input, with the same result. Now, I have channels 0 and 1 designated as "Cab", and cannot get the external input to show. I tried to reset my channel line-up, going through part of Guided Set-Up, and that failed to delete the channels. Unchecking them did not do any good, as the TiVo still tries to tune from cable instead of the external inputs. Is there any way to recover from this, so that the external inputs are available?