So, I have a Roamio plus 6 tuner. It says MoCA on the back. I want to use a MoCA network. I purched a MoCA router on ebay but dont have anything hooked up in my new house. After reading some on connections, did I need the MoCA router? does the Roamio act as the hub of the network? In addition, I have two Premiere units. As far as I know they do not say MoCA. but the Tivo Website says some Premieres are. Are the compatible units marked?