Originally had a 322 receiver hooked up with a 2nd tv also running from that. Now we have a 722 receiver hooked up with a 2nd tv running from it. I would like to also connect the 322 receiver. When I look at the dish, it has one wire hooked to one of the lnb connections going into a splitter then wires coming out of sat and vhf/uhf. One of those wires goes to the 722 receiver and the other goes into the room that the 322 needs to be hooked up in. What do I need to do? There are 3 connections on the lnb. Do I need a multi switch? Please Help!