Take a step back in time- be a part of a live radio show audience for the CAST Theater production of “It’s A Wonderful Life” at Columbia Center for the Arts. “It’s A Wonderful Life,” a holiday “live radio drama” will take to the stage from Dec. 6-20.

The subject is boundaries in “An Evening of Four One-Act Comedies,” the 35th season opener for CAST, starting Oct. 11 at Columbia Center for the Arts. Three of the plays feature new directors. Explicitly or in nuanced ways, all four plays examine one or more types of borders — emotional, political, involuntary and designed — confronting the human condition.