Unfortunately I really have no idea what "Non-swm lnb to power passing splitters," means.
I don't really know what a LNB is - but from what I'm guessing by looking at a couple stores, it's the piece that points at the dish. So I'd have to buy a new one and replace the one on my dish?
And then run that to a power-passing splitter like
this - and then from there into my existing SWM switch for the 4 HD DVRs and then buy an additional switch to run the non-DVR receivers?
Or, could I just order a new receiver, have DirecTV come install it and see what they do? Because running additional lines to each of the four receivers is out of the question at the moment, so I need my SWM.