Advertisements I have a series 3 HD Tivo that has just started locking up. I looked thru a bunch of the other threads and didnt see exactly what I am experiencing. My apologies if I missed it. Basically my TiVo is useless. In troubleshooting with TiVo support (2nd level) we left the unit completely unplugged except for power, Ethernet (to get the promised fix) and connections to the TV. I was told that there were a large number of Series 3 HD users experiencing the same thing over the last week or so and that a fix was being worked on. Basically, when the cable is plugged in the unit locks up and after a 5-10 minutes reboots, locks up again, reboots unplug the cable and after a minute or so things return to normal. They originally determined it was a cablecard issue but the cablecards have been out of the unit for days and it is still doing it. Thoughts? Are others experiencing this?