I can't seem to find this answer anywhere, so here goes: Just purchased a Samsung DirecTV HDTV reciever. Now, will the DVI input/OP carry non HD programs too? Or will I have to change input to watch regular sat. TV? IF so,that would use S-Vid for regular Sat TV, and the DVI for HD. Seems a little execssive, but is that what I'll need to do? Or will JUST the DVI connection be suffice? Thanks in advance....getting ready to climb on the roof for Dish install.