Ok so I have comcast. Can D* hook up the dish to the existing cable that is already going from outside my house to the inside which the comcast is hooked up to now?. My dad does not want anymore holes drilled into the house for wiring.What would have to be done to the wiring inside the house? Also what would have to be done if I want to get one HD DVR, and one regular Hd reciever? Thanks for the help guys.. Oh and the existing cable is RG-6.