If I have 1 DVR and 4 HD receivers connected for the whole home DVR setup, to receive local channels that DirecTV doesn't carry would I have to have an AM21 on each receiver or just the DVR?
If I have 1 DVR and 4 HD receivers connected for the whole home DVR setup, to receive local channels that DirecTV doesn't carry would I have to have an AM21 on each receiver or just the DVR?
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