Hi, I'm having Directv installed for the first time this Sunday. I've ordered the DVR receiver from them, but from what I have read on this board, using a Tivo based receiver/dvr might be much better. I have the opportunity to buy a R15-500 locally -- would there be an advantage to having this rather than the DVR that Directv will provide to me? Meanwhile, I am told that Directv will bill me the same monthly amount whether I supply the receiver or they supply it -- so I know I will not be saving any money if I supply my own. I should add: I have not previously owned or used a DVR -- so my learning curve will start at the "what the poop is this?" phase and hopefully work forward. Thanks for any insight you can give.