I just press the "Dish" button on the bottom right of the remote. I believe I had 40+ HD movies when I left today and over 30 shows that I could view immediatly, some of the latter were not HD.
I did watch about 10 minutes of Pawn Stars that was in HD, it looked good on my 42" set, I will fire up the projector tomorrow and see how it looks on my 119" screen.