Roamio OTA via MOCA Connection

I'm considering dumping my Roamio cable card tuner and just getting a Roamio OTA unit. I get a load of OTA stations, flawless from several markets, and am going the cord cutter route. I've got 4 minis attached to my current Roamio, which I plan to keep. However this is all through my MOCA network. I notice that the Tivo Roamio OTA only has one coax input. Can someone tell me how I would be making the connection? My assumption is that I've got to get ALL of the cable runs together. Problem is that the internet is coming through my house via cable, currently.

Confused. Clarity please. HELP!!