Last October, I bought Tivo Series 2 DT and did the 3-year package at $299 which I paid upfront and it included both the box and 3-years of service. I also have a 2nd Tivo Series which I bought at Target and pay $6.95 per month for the the service. However, I would now like to buy the new HD Tivo for $299 but how would that work? Would I stil receive a credit for the unused portion of my current 3-year package? Or will they force me to pay the full $299? Please let me know. Thanks.