Keep in mind, if you buy a single Tivo with the DVD built in, if one or the other breaks, you have to buy the whole set again. If the DVD player is no longer up to snuff you lose your TIVO or TIVO comes out with an HDTV version that you MUST have you lose your DVD player. I personally just don't like buying devices that depend on each other. At least whith numerous smaller devices, if I want to upgrade, I can one piece at a time, making the hit a little less painful.