[1] He was the son of the electrical engineer Frederick Moss Dimmock and his wife Ruby Pauline Sterling (née Hudd).
[3] When the Second World War broke out,[4] Dimmock joined the Royal Army Service Corps, a territorial unit, and served as a driver.
[5] After demobilisation in January 1946,[5] Dimmock briefly joined the Press Association as a racing correspondent because he realised he wanted to become a journalist.
[19] As assistant head of outside broadcasts,[10] he was in charge of events such as the funeral of George V in February 1952,[5] and the Coronation of Elizabeth II in June 1953, preparing for the job by studying the American television coverage of the first inauguration of Dwight D.
[20] He provided commentary on the 1953 British Games at White City Stadium, London,[21] the final races of the fourth match of the 1953 International Speedway series between England and Scotland at Motherwell Speedway,[22] and an international swimming gala of continental champions against British champions in January 1954.
[23] He launched a televisual coverage from April 1954 in front of the cameras as the regular presenter of a new live weekly sport news programme Sportsview (which became Sportsnight in 1968), with what would be a long-running Speedway series.
[31][32] Dimmock took part in the 1958 Monte Carlo Rally as the co-driver of a Humber Hawk,[33][34] and again in 1959 and 1960, both times driving a Ford Zephyr.
[38][39] The cab he shared with Tony Brooks and co-driver Bob Gerard retired with gearbox problems in the Central French mountains.
[42][43] In February 1962, he was sued by the boxer John Caldwell for alleged libel over comments Dimmock made during an edition of Sportsview.
[5][26] He presented his final Sportsview in April 1964 because of time constraints,[48] and was a judge at Miss World 1969,[49] He continued to lead the Outside Broadcasts department until September 1972 and became general manager of BBC Radio and Television Enterprises at Villiers House, Ealing.
[7][50] Dimmock oversaw the promotion of television and radio programmes, BBC records, merchandise and an increase in the department's pre-tax profits from £700,000 to £1,250,000 by streamlining ways of administration and marketing.
[4][24] In 1990, Dimmock returned to the United Kingdom, and served as chairman of the independent production company Zenith Entertainment from 1991 to 2000.
[54] Dimmock was the author of the Sportsview Annual from 1954 to 1965,[26] Sports in View in 1964 and contributed to The BBC Book of Royal Memories in 1990.
[1] A memorial service for Dimmock took place at St Bride's Church, Fleet Street on the morning of 16 March 2016.