I just purchased a new BOLT with the All In plan. I have an old Roamio which has not been used in 2 years. Can I use the Roamio instead a Mini to connect to the BOLT and use the BOLT's subscription plan? If so, how?

Selling together or separately . Roamio works great -$75, Mini TiVo refurbished, never used $120 $150 if purchased together. No lifetime

Bought a Mini and want to set up a MoCA. Do I need a MoCA adapter at the modem AND a second one at the 4 tuner (w/o built in MoCA) Roamio? The set up diagrams and explanations are unclear to me. I have the poe filter. Thanks in advance.