Talk Radio (Longacre, 220 W. 48). Eric Bogosian’s 1987 play about the coke-snorting host of a call-in show is now a period piece, but it remains an effective vehicle for a charismatic actor, and Liev Schreiber fills the bill to overflowing in this Broadway revival. His performance is slicker than the one Bogosian gave twenty years ago at the Public Theater, but it’s no less remarkable in its own polished way (TT).