Afternoon everyone. I've been considering getting a DirecTivo unit, and like the Sony model for the dd 5.1 output. Everything I've read on it says to maximize performance you need a dual LNB connection. Currently, I'm only using a single line and receiver, and don't want to upgrade just yet as I in the last month just re-wired my whole surround/cable/sat connections in the wall and don't want to unhook it to add one additional line. I'm wondering if, by using only a single line, the DirecTivo would act like similar to a VCR hooked up to the unit, in that we would have to watch what we want to record. And this gives me more incentive to upgrade the house (or just move!) Thanks for your help.