I have Ethernet runs already to where the receivers are, so that's not a problem. It would just be slightly more convenient (I could decommission a switch) if one of them didn't need it. If the DVRs were able to network via SWM and share one Ethernet connection, well, FTW.
I went to the linked page, and that looks interesting, but it's not quite the same thing as what I'm suggesting. One of the DVRs we have is in the living room with Ethernet right there for the whole pile of living room entertainment devices.

The one in the bedroom has Ethernet going to it, but it'd be nicer if I didn't have to light up that Ethernet port at all. I would think the DVRs could network over the SWM without any extra equipment and share a single Ethernet Internet connection.
No?