RCA DSA8900H Multi-Satellite Dish Antenna
RCA DSA8900H Multi-Sat
If you're looking for a multi-satellite dish for DirecTV (only) High Definition, this is the best 'bang-for-the-buck'.  The 5x4 multi-switch is built into the head of the triple LNB's.  This makes it less versatile than other similar products, but it's compact; picks up all three satellites at 101, 110, and 119; and easy to install.  Rugged build and... cheaper than other multi-sat dishes.