Sorry if this has been discussed already and I missed it. A tech at D* told me that the bbc's should be hooked because they have something to do with upconverting the signal on my local MPEG4 HD channels. Is this correct or even close? I thought everything that I read said that they are for future use and they could be disconnected. I took mine off becuase I was trying to see if I had less lockups without them. Just as many lockups with as without. Thx.