From Wikipedia:
Robert Q. Lewis (April 25, 1920 – December 11, 1991[1]) was an American radio and television personality, game show host, and actor. Lewis added the middle initial "Q." to his name accidentally on the air in 1942, when he responded to a reference to radio comedian F. Chase Taylor's character, Colonel Lemuel Q. Stoopnagle, by saying, "and this is Robert Q. Lewis.” He subsequently decided to retain the initial, telling interviewers that it stood for "Quizzical.”
Lewis was an early arrival on network television, presiding over more than one series at a time. The Robert Q. Lewis Show had a six-month run on CBS's Sunday night television lineup from July 16, 1950 to January 7, 1951. At the same time he also hosted CBS's TV talent-search variety program The Show Goes On from January 19, 1950 to February 16, 1952. He also had two daytime variety shows on CBS. The first, Robert Q's Matinee, was a 45-minute daily show, which lasted 14 weeks, from October 16, 1950 to January 19, 1951. The second, more successful The Robert Q. Lewis Show ran on CBS-TV from January 11, 1954 to May 25, 1956.