I've had two DVRs from Comcast. Up until last week, I decided to get a couple of Series3 Tivos. Went to the local Comcast store the next day and picked up 4 cablecards. A little bit of trouble getting them installed, but by the next day everything was clicking. Now that I'm sure my Tivos will be running (activated correct, CCs working, etc), I was ready to bring back my two Comcast DVRs. I go to their local store (in Webster) and they say that I cannot turn in my DVRs if I want to keep my other 4 cablecards! If I turn in the DVRs, they will deactivate my cablecards and revert me to basic digital cable. Their stance slowly changed from having to keep both DVRs to keeping one DVR. Then eventually down to have to have at least one cablebox. Then finally down to have to have one cablebox in the house...doesn't have to be connected and they will not charge a rental fee. Heck I didn't even want the box, but since they were "giving" it to me for free...and I was tired of arguing, I now have two perfectly working Series3 Tivos and one cablebox in the closet. What seemed to get them to move off their initial stance was making comments regarding FCC and illegal practice. Is this the stupidest thing you've ever heard of? I'm sure this is a perfectly fine working cablebox that someone could be using, but instead, it will be sitting in my closet. BTW, I'll probably pay more attention to my Comcast bill to make sure I don't start getting zapped for a box rental.