Image: Frances Day, Jerry Desmonde, Elizabeth Allan, Gilbert Harding on the panel in 29 August 1951.
The light hearted panel game What's My Line began on ÃÛÑ¿´«Ã½ television on 16 July 1951. In the programme a team of four celebrities had to guess the often unusual occupation of a contestant. The Radio Times preview said it "looks like being a lot of fun", and so it proved to be. The first chairman was Gilbert Harding, but he proved unsuitable and was replaced by the affable Eamonn Andrews.
What's My Line started life in America, where contestants signed in by writing their name on a board. In the British version they also mimed their profession, and if they defeated the panel they received a certificate. On the first programme the panel comprised Barbara Kelly, Ted Kavanagh, and Jerry Desmonde. The irascible Gilbert Harding became a regular panellist, and his clashes with Andrews became a popular element of the show.
What's My Line ran until 1963, with Andrews at the helm. It proved to be a durable format, returning in 1973 with David Jacobs as host, and later on ITV with Andrews. On the ÃÛÑ¿´«Ã½ Andrews went on to present This is Your Life, on which he was surprised to find himself the first guest.
July anniversaries
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              Investiture of the Prince of Wales1 July 1969
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              Masterchef2 July 1990
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              ÃÛÑ¿´«Ã½ Television News and Newsreel5 July 1954
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              To the Ends of the Earth6 July 2005
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              Hancock's Half Hour television show6 July 1956
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              London Calling Europe began6 July 1941
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              The Old Man of Hoy8 July 1967
- 
              The first episode of The Office9 July 2001
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              Andy Pandy11 July 1950
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              It's That Man Again12 July 1939
- 
              Watchdog14 July 1985
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              What's My Line16 July 1951
- 
              Toytown first transmitted19 July 1929
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              Pot Black first transmitted23 July 1969
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              Countryfile first broadcast24 July 1988
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              Start of the Light Programme29 July 1945
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              Olympic Games from Wembley first televised29 July 1948
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              The Wedding of Prince Charles and Lady Diana Spencer29 July 1981
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              The World Cup Final30 July 1966
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              Dad's Army31 July 1968
 
                     
                             
                            