I have a triple LNB antenna feeding four rcvrs (3 hughes, 1 RCA DVR40). All work fine. The problem is how to connect the second tuner on my RCA DVR. As I understand it, the three LNBs feed a built in multiswitch which feeds four RG6 outputs. These four outputs feed my four rcvrs which are in separate rooms. I tried splitting the RG6 feeding our bedroom with the DVR with a satellite splitter ($11.40 at Radio Shack for reference). I worked my way through the on screen setup, got "ok" on both line 1 and line 2 satellite inputs, and once even got through the "acquiring data" step. When I tried to watch a different show than the one I was recording, I got a "lost line 2 input" or something like that. I ultimately redid the setup with one cable input. Reading the forums, it appears that you can't use a splitter. How do I connect the second tuner on my DVR and keep the other three rcvrs functional? I think the antenna has a 3 in 4 out multiswitch. Any help would be appreciated.