Its hard to be funny all the time, but Philadelphia's all-comedy theater company, stationed at Plays and Players, does just that. Last season, Cherry Bomb was, well, the bomb. Their annual This Is the Week That Is show is always a (smart) hoot. And they changed it up a bit by throwing in a musical cabaret about marriage, to critical acclaim (masters of comic timing, raved the Inquirer). Next season, were looking forward to The First Day of School: A Soccermom Sex Farce (opens 10/1) and April's An Evening With(out) Woody Allen.