Blame the extra time off. Nostalgia invariably arrives on the heels of Christmas, bringing with it the inevitable (and perhaps involuntary) tendency toward introspection. The New York Theater Experiment offers its own meditation on this annual hyper-self-awareness in a pair of short plays: Thornton Wilder's quiet gem The Long Christmas Dinner, a faithful snapshot of classic Americana, and A New York Christmas Carol, a quirky, modern take on a timeless British classic. Although the combination of two divergent scripts has the potential to create a fresh take on these two pieces, the coupling unfortunately offers little by way of enlightenment. Varying wildly in subject matter as well as production value, the two halves seem to have little in common other than their subject matter