I have a the non HD dual tuner Tivo, and now got Comcast HD and their DVR is crap so I want to get the HD TIvo and I have a couple of questions. 1. I'm currently paying 16.95 for my 3 year plan for the old Tivo (isn't that too much, shouldn't it be 12.95? I started it middle of last year.) 2. Do I have to buy the Tivo from Tivo to get the 6.95 for 3 years or can I just buy it from anywhere? 3. Can I just upgrade my current 3 years? How exactly will that work? Will the 16.95 go down to 6.95 ... or will the 3 years be added on to my current remaning years? 4. Is there anything I can do with my non HD Tivo?... return it somehwere for some money or its pretty much a door stop? I guess thats about it, I'm just not clear on these matters and want to make sure I have these questions answered before I get this thing. Thanks!