I have a TiVo Romeo OTA DVR with lifetime subscription that was purchased new in Sept 2018. We have filled the hard drive and just found out the external expander is no longer available. Can the internal hard drive be replaced with a larger capacity drive? If so, what is the max capacity it...

I have my OTA TiVo set up in the living room. I would like a mini for the bedroom. I do not have Ethernet in the bedroom. My question is, " could I set up my roamio OTA in my bedroom using my wifi, then plug the mini in the living room directly to the modem? Will this work or do I have to have...