Hi.. I have 4 receivers with an old antenna setup in which my runs come out of a channel master 4x4 multi-switch. I've upgraded 2 of my receivers to DVR's meaning I need 2 addtional outputs. We'll.... considering I have a spare 2x4 switch which is ment to give 4 outputs from a dual lnb I decided two connect the 2x4 to 2 of the 4x4's outputs. That way, physicallly I would have a total of 6 outputs.. just what I need. Well, did the wiring and it doesn't work.... I only get the odd transponders out of the DVR's connected thru the 2x4. The other 2 receivers directly connected to the 4x4. Any ideas? I this supposed to work or not? Any help is aprecietted. Thanks !