mlb.tv
It's fine. I get to watch a ton of MiLB games as well.
I also listen to a bunch of Sox podcasts: the TalkSox ones, SoxProspects, Section 10, Fenway Rundown, 310 to Left. There are some national podcasts like Effectively Wild, Batting Around and Baseball America that I listen to.
I don't think my viewing/listening habits are much different than when I lived in MA TBH.