If the name Chicago City Limits brings to mind the famed Second City comedy troupe, the similarities are not a coincidence. George Todisco and other actors founded the company in 1977 while studying with Second City. In 1979, the troupe relocated to New York City, where it remains — with name unchanged. Dubbed “the perfect masters of improvisation” by the New York Times, the ensemble has its own off-Broadway theater and has performed there more than 10,000 times. Their secret to success? No two shows are alike. Audience prompts propel one-of-a-kind theatrics ranging from plays and stories to game shows and mini-musicals.