If you are going to research for him then it would be helpful to post:
1. The model number of the home receiver
2. The model number of the rigs dish
3. The model number of the receiver previously used in the rig
4. The rigs TV model numbers or just SD or HD, HDMI capable or component/composite capable or coax input.
The bottom line: DTV is pushing multiple channel HD recording/watching capability with Genie and with one coax to each remote Genie Client for your house. You need to figure out what to do with your rig.