I just recently upgraded to a new HD receiver but am holding off on the dish for now. Probably will upgrade before the end of the year to get the 6 months free, though. My question is this: When I upgrade to the 18X20 dish and use the switch on the dish, two of the connections will go to my SD DVR and 1 connection will go to my HD receiver and 1 connection will go to my SD receiver. That uses them all up. What happens if I want to ever upgrade to an HD DVR? I understood the the cascadable switches only passed the 101 signal.