I bought my parents a Series 2 DT years ago and installed it for them in Florida. They have Comcast cable. At first they only had low-def: no problem. Then they wanted HD: they got a Comcast box, I split the coax and sent one to TiVo for 2-99 low-def and the other to Comcast for HD, and then installed the IR channel-changing wire and the AV wires to get 100+ on the TiVo (telling them explicitly NOT to touch their Comcast box when TiVo is taping channel 100 or higher, and to make sure it's on). They existed with that setup with no issues. Now Comcast has "helpfully" digitized all their channels, requiring cable boxes to decode even 2 through 99. They sent out tiny free cable boxes, which are useless because you can't use the IR blaster to change their channels (or, at least, I couldn't find the proper code). They do have a regular (non-HD, non-DVR) cable box on the bedroom TV; I told them they could install the tiny free cable box in there and move that non-HD cable box to the parlor to use with TiVo. They would have to use the IR blasters for every channel, and never turn off the cable box, but it would work. However, I just came to another realization: since the cable box only sends one channel at a time, it makes their DT capability useless, no? The TiVo would basically turn into a compicated glorified VCR. Are they totally out of luck here? Would they have to move up to a newer DVR and get a cable card installed? Is it worth all that hassle, or shall I simply tell them to get a second HD DVR through Comcast? They just paid their annual $129 in March, so they're not even halfway through the contract year. Also: if there are more modern TiVos which can handle this problem, is there a company that sells/installs them? There's no way these senior citizens can handle the complexity of sourcing, purchasing, and installing a more modern TiVo (not to mention dealing with Comcast to get a cable card for it). Again, is it worth the trouble, or should I just tell them, "Eat the remaining half-year of service and get a full-fledged second Comcast HD DVR"? Thankst for any help.