That would certainly be a test as to whether Sci Fi really is SciFi HD, as there is no reason to show the SD feed. Alas, as a Dish guy, I can't find out the answer to that yet...
Still at work so have no way of finding out. I will also compare DTV'S TBSHD in comparison to E's just added TBSHD on PQ. I can say that Directs looks very sharp and you can definitely tell the difference between the new Mpeg 4 channels looking much better.