SCTV vets Eugene Levy and Catherine O’Hara, who paired up brilliantly in “Best in Show” and “A Mighty Wind,” are about to take season 2 bows in Pop TV’s “Schitt’s Creek,” where they play a once-wealthy couple who have lost their fortune and have to rough it with their family in tow, living out of a motel in Schitt’s Creek — a town they once bought as a joke. Tonight, Levy and O’Hara appear in conversation along with a sneak peek at the Mar. 16 season premiere. 92nd Street Y, Kaufmann Concert Hall, 1395 Lexington Ave. Mon., Mar. 14, 7:30 p.m. Tickets are $45, $35 for those 35 and under at 92y.org.