Set up MoCA bridge?

I have researched and researched so I thought maybe some of you could tell me the best set up. I have two Tivo Premieres series 4 (two tuners) and one Tivo Series 2. I just bought a Tivo Roamio Plus and have been trying to install it over the weekend. Previously all my Tivos were set up on our home wireless network. This network is central in our home but not close to any tvs. So, I'm guessing I need to do the MoCA bridge, right? I've decided to retire my Series 2 and keep the Premieres for the time being. In order to make this work do I need a MoCA for the Network and then one for each of the Premieres? Are having the Premieres as good as having a mini? What about a wireless bridge that tricks the Tivo's into thinking they are hardwired?



Thanks for any insights you have.