The Incredible Jewel Robbery was a 30 minute TV special broadcast by CBS on 8 March 1959. It was the last television appearance together of the three Marx Brothers. Harpo and Chico plot to pull off a jewel heist. Groucho makes a cameo appearance at the end. CBS explained it: "If you watch the show you'll see a familiar face equipped with mustache and leer. Because of his contract terms, his name can't be mentioned, but he is not Jerry Colonna."