I have Wholehouse DVR from Directv at my house, it uses a single LNB and 1 cable coming in from the satellite dish. I have 3 HD DVRs and 1 HD receiver, I can watch any recorded show on any receiver. I also get all the HD channels, give Directv a call and I'm sure they can fix you up. There is no need for more than 1 cable coming in from the dish or more than a 1 LNB and 1 cable to the receivers.
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