Just hooked up my Series 2 after it being idle for 9 months. I can hear the Tivo sounds and listen to previously recorded shows. I cannot hear live TV audio. I have tried RCA cables (many) and coax cable connections, same, no audio. I do get audio from my cable box when I connect directly to the TV. When I have coax connection and power off the box, I get signal, with audio, on the TV. I have run guided setup several times to configure with cable, no box, box, etc, to no avail. My feeling is that the box is broken. However, I have not given up. I changed the hard disk years ago, so not timid about opening the box up and poking around. One complication, I live in Rio de Janeiro and use the box to manually record, playback, pause, etc. I have messed with the SAP settings and do not think this is the problem. Any suggestions?