When Frank and Malachy McCourt brought this show to CrossCurrents in 1984 it was a huge hit--and it's lost no power to please. Delivered with dour delight, wizard timing, and expert blarney by Jarlath Conroy and Howard Platt (who also directs), the rollicking tales chart the brothers' love/hate affair with Limerick, where poverty was the eighth deadly sin, and their doings in New York, where these ne'er-do-wells found acting a perfect outlet. That instant recipe for misery, a Catholic childhood, is here humorously condensed to "If you've anything to say, shut up!" The merriment is anchored in ribaldry, the McCourts' deliciously dry humor, and Irish songs so tart or sweet you're won over by the second measure. --Lawrence Bommer a Through 12/24: Tue-Thu 7:30 PM, Fri 8 PM, Sat 5 and 8 PM, Sun 3 PM, Royal George Theatre Center, 1641 N. Halsted, 312-988-9000, $39.50-$49.50.