Advertisements We're considering installing the new series 3 TiVO to replace our two current series 2 units. Of course talking to our cable company has only increased the confusion. Obviously the person I spoke to at the cable company knows little about the options-- very nice gal but not tech savvy at all. This is a small, local cable provider and I'd rather educate them (and myself) rather than yell/scream about how ignorant they are. <g> Their 1st level of support claims: I couldn't use TiVo for HD and I would have to use their DVR system. Of course this is just plain wrong, correct? Asking about cable cards they said they do have cards available, but seemed confused when I suggested I would need two. I've read numerous threads here about getting the two cards, but it's still unclear to me how/where/why they are used? Again, they claim I only get one card. Any advice/insight greatly appreciated. Perhaps there's series 3 user guides available online that I could refer to as well?