I want to change an H20 for an HR20. I've only been a subscriber for 2 months, so I can't get a deal (this would be my second HR20.) I have a $50 Best Buy certificate, so I can pick one up there for $250. My question is I will need a second line run for the HR20. If I buy from Best Buy, can I get D* to run the second line for free like they would if I bought from them?