I am 1 year into a 2 year contract and would like to add an SD DVR. This would replace a SD box in my bedroom. Current setup in HD DVR in living room and SD receivers in bedroom and bonus room. It is my understanding that a multiswitch would be needed since I am going from 4 tuners to 5. Is the SWM available in Middle Tennessee? My bedroom is a little different than the other two, as it uses the existing coax in my home. The living room and bonus room lines are wrapped around the house and drilled into the room from the outside. This is going back a year, but can someone tell me why the installer didn't use existing coax in the other two rooms? I understand the living room because I have a DVR and needed the additional line, but upstairs is not a DVR. If it makes any difference I have a cable modem in the upstairs bonus room. My questions is can I have a use a dual tuner DVR in my bedroom without running another line using the SWM? If so, can I go ahead and put a DVR in the upstairs bonus room using the single cable that has ran during install? What should I expect to pay for 1 or 2 DVRs? Thanks for your help.