Years before he became famous for writing "The Exorcist", Blatty appeared on
Groucho Marx's quiz show,
You Bet Your Life (1950), posing as an Arab sheik with so many wives that he could not recall how many he had. Groucho was completely
taken in. When Blatty revealed that it was a hoax after a couple of minutes, he told Groucho that he did it because
George Fenneman
had said that Groucho was an expert at spotting phonies. Groucho replied, "That is incorrect, because I've had Fenneman in my employ now
for 14 years." Blatty won $10,000 on the show, and when Groucho asked what he intended to do with the money, Blatty replied that he was going to take a year off from his job and write a novel.