Hey guys I think I know the answer to this, but I have a TIVO reciever hooked up to one of my TV's and with only one line. If I wanted to swap this for a SDDVR that I have from Direct that requires two lines right? I ask becouse right now the TIVO I have only has one line. I dont get to watch a different channel and record but its in a room that feature is not that big a deal for me to have.