Comedy stars Eugene Levy and Catherine O’Hara, who have worked together for decades in SCTV and the Christopher Guest films “Waiting for Guffman,” “For Your Consideration,” and “A Mighty Wind,” are back together again in a new series for the Pop Channel (formerly the TV Guide Channel). The name of the show is “Schitt’s Creek” and it is the story of a vastly wealthy family suddenly vastly poor.  Kind of “Beverly Hillbillies” in reverse.