Ok I got my 2 dvr's today. I also got a 3x4 terk multiswitch. I have a oval dish with 2 LNB's. I started playing around with everything tonight and here is my first problem. I hooked up the switch, it has to inports one is 13 v and the other is 18 v. I hooked up one of my input coaxals to the 13 v. Then I hookedan out going to sat 1 port. I re-hooked up my rca IRD just to see if the switch worked. It all looked good,then I noticed that some of the channels had searching for sat and others worked fine. Hmmm why is that. So I hooked it back up without the switch and all channels were back. I want to hook up both of my dvr's tomorrow. What do I need to understand about the switch? As per no instructions came with it.