13 June 1956 - 12 September 1956 4 July 1964 - 3 October 1964 3 July 1965 - 25 December 1965 2 July 1966 - 24 December 1966 29 April 1967 - 23 December 1967 16 March 1968 - 27 July 1968 21 August 1968 - 6 November 1968 25 December 1968 - 23 June 1969 8 September 1969 - 2 March 1970 15 June 1970 - 7 December 1970 15 March 1971 - 6 September 1971 8 November 1971 - 1 May 1972 7 August 1972 - 30 April 1973 6 August 1973 - 29 April 1974 5 August 1974 - 28 April 1975 29 September 1975 - 22 March 1976 4 October 1976 - 4 April 1977 19 September 1977 - 27 February 1978 Bob Says Opportunity Knocks - Series 1 Bob Says Opportunity Knocks - Series 2 Bob Says Opportunity Knocks - Series 3 31 March 1990 - 2 June 1990