DIRECTV - Supercast for Palm Pre now available. Discussion here. DIRECTV - Supercast for Windows Mobile now available. Discussion here.

I currently have a residential swm setup that comes into my house then into a box that is plugged into the wall and finally goes out to a 4 port cable splitter (with one input.) I currently have 3 hr22's and want to add two receivers downstairs. What equipment would I need to accomplish that...