I have the following setup: a DLP projector,receiver w/5.1 surround sound, and DVD player...nothing major here. My problem comes up when I decided to add satellite tv to my entertainment system. I can't run the projector to switch from DVD player over to satellite tv, i.e. the S-Video cable from the projector has to be plugged into either the DVD player or plugged into the satellite box. What do I need to do here so that I can switch from one to the another by just the touch of a button and not swapping cables?????I'm confused. Please help.