On a show from 1962, contestants included Mr. and Mrs. Armstrong. Their secret was that their son Neil Armstrong was named that day to the US astronaut corps. During the interview after Betsy Palmer guessed the secret, Garry Moore asked Mrs. Armstrong how she would feel if her son became the first man to walk on the moon.
Harpo Marx was one of the celebrity contestants on the show. The secret was that it was actually Chico Marx in Harpo's costume, since the brothers bore an uncanny resemblance to each other. None of the panelists guessed it.
Regular panelist Betsy Palmer served as a temporary hostess on more than one occasion while Garry Moore was on vacation.
The show's longtime sponsor, Winston cigarettes, canceled Groucho Marx's scheduled appearance on the panel because he insisted on smoking his cigar. A similar appearance by Ernie Kovacs in July 1956 was canceled for the same reason, but the sponsor had a last-minute change of heart and allowed him to appear, complete with cigar.
The show's main sponsor was Winston cigarettes. For several years, adult contestants won cash and a carton of Winstons.