Thanks for all the replies. I have a 510, 721, and an 811. My goal is to have the 811 and 721 in my entertainment center (family room), to use on my HD big screen. I will put the 510 up in the bed room.
As mentioned, this house was wired for cable and also LAN during construction, with RG-6 to all rooms (single line). I apparently need a second RG-6 into the family room regardless as I will have "3 tuners" there. From what has been suggested, I can use a DP-34 at the box, feed two RG-6 to the family room and a RG-6 to the bedroom. Then add a DP-34 into the entertainment center to run the 810 and the 721?
I currently have only the dish 500 mounted, with a DP Quad LNB. I understand that there is a new HD CBS channel available, but that it requires another dish to hit a third sat? I have never gotten beyond a single dish as my previous home had no line of sight for any other satellites. I have clear sky here so I can point at any available satellites.
If I am on track with my in house wiring now, I would appreciate any thoughts on what I should be adding to improve my HD channels.
Thanks again, the advice has been greatly appreciated.
Bob in Suffolk