Do I need a BBC with Slimeline SL5 and HR34 receiver? Please. I have a Slimeline dish SL5 (4 outputs from the LNB) and I have a HR34 receiver. The HR-34 really needs a BBC to work with the SL5 LNB? Other question: I configured the system to 18x20 dish and works fine, and I also have like 5 HD channels, that's normal? I mean the 18x20 dish doesn't receive HD right? Why I have HD with that configuration?