I need help figuring out how to set up 2 HD tv's and 2 standard (bedroom) tv's with Dish. I think I can do this with two dual-tuner boxes (like vip722), but not sure exactly how it's going to transmit the second tuner to another room. Will the signal just feed back out of the box back through the cable jack wiring and be able to be picked up on an SD via cable jack in a bedroom? Can this be done with two dual-tuner boxes all on the same wiring? So one box transmits on one channel and the second box on another channel, then tune each SD tv to those channels? I'm a little new and confused at this, thanks.