Therapists have a saying that if it’s not one thing, it’s the mother. In the latest incarnation of “Frasier,” which aired its season finale Dec. 7 on Paramount+, Grammer’s metronomic-voiced hero returns to the “Cheers” setting of Boston, where he almost immediately moves in with his now-adult son Freddy by making the 30-something Harvard dropout-turned-firefighter an offer he can’t refuse: …
