Yes, the 93.7 FM transmitter is in Peabody, close to Exit 46 (US Route 1 South) of I-95 South. I remember that it would wipe out nearly everything on my Walkman there, even on "LOCAL" ("CITY") mode.
As for heading south or southwest from Boston, 103.7 of Westerly/Providence becomes an option. I think their transmitter is down by Exeter, RI, since I sometimes get a weak signal of it here in central Connecticut.
As for my area, WTIC-AM 1080 of Hartford will be airing them for the (I think?) 52 straight year. However, there's an occasional day game that they may not carry. Meanwhile, we'll have the Yankees for the second straight year on WUCS-FM 97.9 of Windsor Locks/Hartford (97.9-ESPN). WPOP-AM 1410 (Fox Sports Radio) of Hartford will likely carry the New Britain Rock Cats (AA-level Minnesota Twins) once again.