I have a Roamio and also the Edge that I use for OTA and I like them both. The tuners in the Edge have worked just as well as my Roamio, if not better, and it has worked perfect with zero bugs or problems. I think you would be happy with either one for your OTA use. The preroll commercials are easy to skip with the press of a button but if something like that would annoy you then stick with the Roamio, you can use TE3 and avoid all that. I personally like the new interface (TE4) but some people don't, it's something you have to decide for yourself. I would not use a tivo as a plex client or for streaming other services. I use an Apple tv for those things and I would recommend that or one of the others (Roku, Firestick, etc) which work great for that purpose.