Well, I'm finding that the TiVo Series 3 is not working as well as the Motorola 3412, which is really saying something. So many channels are missing that I fear that the device is utterly useless for us. I'll call both TiVo and Comcast again today (Sunday) and tomorrow (holiday) but fear it will be Tuesday before I get any replies. From what I've read this morning I shouldn't expect anything constructive. Hopefully, someone at TiVo can give me some magic code to fix this.