Here's the scoop. First, what I'm asking is NOT intended to be anything illegal, in case anyone perceives this as such. I have Comcast Internet service and DirecTV. I have no desire to obtain Comcast's cable service. However, because of a 12-month promotional Internet price, they required I take delivery of their digital set top box. In addition, they say that my apt. complex provides for free basic cable, so the box is necessary anyway. Fine. I took delivery of it but did not activate it. It's a new, digital box/DVR that's sitting in its box unused. My brother down in Texas has an apartment he uses during the week for commuting purposes and was wondering if my digital cable box/DVR would work on his Comcast cable system there. I told him I'd ship him the thing but wasn't sure if it would work. Now, I know these are not exactly like DirecTV receivers. If he had a DirecTV account, I'd just call DirecTV to see if they could switch a purchased receiver I had lying around to his account (I want to keep everything on the level). For Comcast cable, though, especially since I haven't activated this box on my account (nor on his, either), I'm just wondering if he can even use this thing.