Question: What host of Going, Going, Gone became known for "It's a Knockout"?

full_context: Document 1: Ant &amp; Dec: Anthony McPartlin, OBE (born 18 November 1975) and Declan Donnelly, OBE (born 25 September 1975), known collectively as Ant & Dec, are an English comedy TV presenting, television producing, acting and former music duo from Newcastle upon Tyne, England.
Document 2: Live Floor Show: Live Floor Show is a television comedy show produced by BBC Scotland for three series from 2002–2003. The first two series, hosted by Greg Hemphill, were broadcast on BBC One Scotland. The third series, hosted by Dara Ó Briain, was shown on BBC Two.
Document 3: The Late Late Show with Craig Ferguson: The Late Late Show with Craig Ferguson is an American late-night talk show hosted by Scottish American comedian Craig Ferguson. It was the third iteration of the "Late Late Show" franchise, airing from 2005 to 2014. It followed the "Late Show with David Letterman" in the CBS late-night lineup, airing weekdays in the U.S. at 12:37 a.m. Taped in front of a live studio audience from Monday to Friday at CBS Television City in Los Angeles, California, directly above the Bob Barker Studio (Studio 33), it was produced by David Letterman's production company Worldwide Pants Incorporated and CBS Television Studios.
Document 4: Jimmy Savile: Sir James Wilson Vincent Savile, OBE, KCSG ( ; 31 October 1926 – 29 October 2011) was an English DJ, television and radio personality, dance hall manager, and charity fundraiser. He hosted the BBC television show "Jim'll Fix It", was the first and last presenter of the long-running BBC music chart show "Top of the Pops", and raised an estimated £40 million for charities. At the time of his death he was widely praised for his personal qualities and as a fund-raiser. After his death, hundreds of allegations of sexual abuse were made against him, leading the police to believe that Savile had been a predatory sex offender—possibly one of Britain's most prolific. There had been allegations during his lifetime, but they were dismissed and accusers ignored or disbelieved; Savile took legal action against some accusers.
Document 5: Gordon Burns: Gordon Henry Burns (born 10 June 1942) is a Northern Irish journalist and broadcaster. He was the host of "The Krypton Factor" for its original 18-year run (1977–1995) and was the chief anchorman for the BBC regional news programme "North West Tonight" from January 1997 to October 2011. In November 2011 Gordon moved back to Belfast were he was born.
Document 6: Stuart Hall (cultural theorist): Stuart McPhail Hall, FBA (3 February 1932 – 10 February 2014) was a Jamaican-born cultural theorist, political activist and sociologist who lived and worked in the United Kingdom from 1951. Hall, along with Richard Hoggart and Raymond Williams, was one of the founding figures of the school of thought that is now known as British Cultural Studies or The Birmingham School of Cultural Studies.
Document 7: Going, Going, Gone (TV series): Going, Going, Gone was an antiques quiz show in the UK during the 1990s, which was shown on BBC Two and which was produced by BBC Scotland in Glasgow. The show ran from 16 October 1995 to 11 March 1998, and aired 144 programmes. Originally presented by Andy Craig and assisted by antiques expert Eric Knowles, the final series was hosted by Stuart Hall.
Document 8: Go (game show): Go is an American television game show created by Bob Stewart and aired on NBC from October 3, 1983 to January 20, 1984. The show featured two teams, each composed of four contestants and a celebrity. The teams had to construct questions one word at a time to convey a word or phrase to their teammates. The concept of "Go" was based on a bonus round used on "Chain Reaction", another game show created by Stewart.
Document 9: Stuart Hall (presenter): James Stuart Hall (born 25 December 1929) is an English former radio and television presenter. He presented regional news programmes for the BBC in North West England in the 1960s and 1970s, while becoming known nationally for presenting "It's a Knockout" and "Jeux Sans Frontières". His later career mainly involved football reporting on BBC radio.
Document 10: Man O Man (UK game show): Man O Man was a British game show based on a popular German format, which ran from 4 May 1996 to 7 August 1999, hosted by Chris Tarrant. The first series was produced by Richard Hearsey who previously produced another show hosted by Tarrant called "Prove It!". The first series was recorded at Twickenham Film Studios during the winter of 1995 and aired in 1996. The show was given another shot in 1998 with 2 one-off specials and a second series in 1999, both being recorded at The Fountain Studios. One of the hostesses in the first series, Tracey McAndrew later changed her stage name to Nell McAndrew and went on to co-host the re-make of "It's a Knockout!" for Channel 5, again working with Richard Hearsey as producer but was produced by Ronin Entertainment.
Document 11: Win, Lose or Draw (UK game show): Win, Lose or Draw is a British television game show that aired for nine series in the ITV daytime schedule from 1990 to 1998, produced by Scottish Television. The game was based on an American television game show of the same name.
Document 12: Jimmy Savile: Sir James Wilson Vincent Savile, OBE, KCSG ( ; 31 October 1926 – 29 October 2011) was an English DJ, television and radio personality, dance hall manager, and charity fundraiser. He hosted the BBC television show "Jim'll Fix It", was the first and last presenter of the long-running BBC music chart show "Top of the Pops", and raised an estimated £40 million for charities. At the time of his death he was widely praised for his personal qualities and as a fund-raiser. After his death, hundreds of allegations of sexual abuse were made against him, leading the police to believe that Savile had been a predatory sex offender—possibly one of Britain's most prolific. There had been allegations during his lifetime, but they were dismissed and accusers ignored or disbelieved; Savile took legal action against some accusers.
Document 13: Hughie Green: Hugh Hughes Green (2 February 1920 – 3 May 1997) was an English television presenter.
Document 14: Alan Dedicoat: Alan Dedicoat (born 1 December 1954) is an English announcer for programmes on BBC One and BBC Radio 2; he is probably best known as the "Voice of the Balls" on the National Lottery programmes on BBC One. Until March 2015 he also read the news on BBC Radio 2. Dedicoat is also known as the announcer on BBC One's "Strictly Come Dancing" and its American version, "Dancing with the Stars".
Document 15: Hamish and Andy's Gap Year: Hamish & Andy's Gap Year is a Logie Award winning comedy series following Hamish Blake and Andy Lee, a pair of Australian comedians, on their trips to various international locations. The first season saw the boys visiting America for ten episodes and broadcast their show weekly from New York City. In its second season in 2012, the show was titled "Hamish & Andy's Euro Gap Year" and seven episodes were broadcast from The Lord Stanley, a disused pub in East London, England. The third season known as "Hamish and Andy's Gap Year Asia" in 2013 was broadcast from a bar in Bangkok, Thailand, called 'The Raintree'.
ground_truth: Stuart Hall