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

Context paragraphs:
Hasim Rahman: Hasim Sharif Rahman (born November 7, 1972) is an American former professional boxer who competed from 1994 to 2014.  He is a two-time world heavyweight champion, having held the unified WBC, IBF, IBO, and lineal titles in 2001; and the WBC title again from 2005 to 2006.  Rahman first became known on the world stage in 2001 when he scored an upset knockout victory against Lennox Lewis to win the unified heavyweight championship.  Lewis avenged the loss and regained his championship by knocking out Rahman in a rematch later that year.  Rahman won the WBC title (initially the interim version) for a second time in 2005 by defeating Monte Barrett, after which the WBC elevated him to full champion status by the year's end.  His reign as champion ended in 2006 via another knockout loss, this time to Oleg Maskaev in a rematch of their first fight in 1999.

Jean Lussier: Joseph Albert "Jean" Lussier (1891-1971) was a Canadian-American daredevil, best known for going over Niagara Falls on July 4, 1928.  Unlike the daredevils who had gone over the Falls previously in wooden barrels, Lussier designed and built a 6 ft rubber ball lined with oxygen tubes, he rode over Niagara Falls.  Lussier capitalized on his fame by moving to Niagara Falls and selling pieces of the ball to tourists and later used tires after the pieces of the ball ran out.  In the 1950s, when Lussier was in his 60s, he talked about plans of building a bigger ball and going over the American Falls, but these were never realized and he retired in 1938.

Sun Honglei: Sun developed an interest in acting and performances at a young age.  He often skipped school to learn breakdancing on the streets and eventually gave up his studies entirely to pursue dancing as a career, eventually performing with a modern dance troupe for several years.  Later, Sun became a popular local nightclub singer and host before going into acting.  In 1995, Sun attended the Central Academy of Drama, where he graduated in 1997.  He has since gone on to star in numerous TV dramas and films, winning many awards for his stage work.  Sun is probably best known to Asian cinema fans for his supporting performances in "Seven Swords", "Triangle" and "Blood Brothers".  Since October 2011, Sun has played the starring role in the popular Chinese series 'Nanren Bang' (男人帮), portraying urban romantic life from a male perspective.

Clientitis: Clientitis (also called clientism or localitis) is the tendency of resident in-country staff of an organization to regard the officials and people of the host country as "clients".  This condition can be found in business or government.  The term clientitis is somewhat similar to the phrases "gone native" or "going native".

Anna Gordy Gaye: Anna Ruby Gaye (née Gordy; January 28, 1922 – January 31, 2014) was an American businesswoman, composer and songwriter.  An elder sister of Motown founder Berry Gordy, she became a record executive in the mid-to-late 1950s distributing records released on Checker and Gone Records before forming the Anna label with Billy Davis and sister Gwen.  Gordy later became known as a songwriter for several hits including the Originals' "Baby, I'm for Real", and at least two songs on Marvin Gaye's "What's Going On" album.  The first wife of Gaye, their turbulent marriage later served as inspiration for Gaye's album, "Here, My Dear".

Elaine Bartlett: Elaine Bartlett was a woman charged with a first offense felony for selling cocaine.  Elaine, a mother of four children, spent sixteen years in the Bedford Hills prison in New York.  During the time of Elaine's arrest, New York had just undergone some major changes with their drug laws.  The controversial Rockefeller drug laws caused a major upset and cause many to second-guess the criminal justice system's benign motives.  After he release in 2000, Elaine had no proper resources to help her get back on track with her life but that was not an excuse for her.  Bartlett was a woman on a mission who was going to prove to not only to herself, but to the world that she was going to make it.  After having lived through sixteen years in prison, she became an activist to repeal the Rockefeller drug laws.  Bartlett helped found the Mothers of the Disappeared which is an advocacy group that is fighting to try and repeal the drug laws.  Not only has Bartlett helped found this organization, but she has also gone up against New York state legislators, and delivered speeches at rallies.  Besides the Rockefeller drug laws, Bartlett has also made an impact in attending anti-drug law events in Washington D.C., Philadelphia, and Texas.  While Elaine was still in prison, she wanted to be involved with as many activities as she possibly could in order to keep busy and to show that she had the full potential to better herself and get an education.  In 1999, Bartlett obtained her associate degree from Mercy College while she was still in prison.

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.

If You're Gone: "If You're Gone" is a song by the rock band Matchbox Twenty.  It was released in October 2000 as the second single off "Mad Season".  The song, written by Matchbox Twenty frontman Rob Thomas, became a hit on adult contemporary radio, spending two weeks at number 1 on the "Billboard" Hot Adult Contemporary Tracks chart.  It also reached number 5 on the US "Billboard" Hot 100 chart, the band's second best-ranking song at this moment, preceded by the single "Bent" from the same album.  Rob Thomas never dreamed of the song going out on an album, let alone being a huge success.  The horn-driven outro of "If You're Gone" borrows heavily (note for note) from "When the Rainbow Comes" by World Party from their 1990 release "Goodbye Jumbo".

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.

Bridget Perrier: Bridget Perrier (born 1977) is a former sex worker who cofounded Sex Trade 101 with Natasha Falle.  She became a child prostitute at the age of 12 while she was staying at a group home and an older girl there persuaded her to become a runaway in order to sell sex to a pedophile named Charlie.  She had a son, Tanner, who developed cancer as an infant and died at the age of five with the dying wish that his mother get out of the sex industry.  In 2000, she moved to Toronto from Thunder Bay, Ontario, Canada.  She is the stepmother of Angel, whose biological mother was Brenda Wolfe, one of Robert Pickton's murder victims.  In 2009, Perrier accompanied Angel at Toronto's Native Women's Resource Centre for the Sisters in Spirit vigil in remembrance of Wolfe and the other more than 500 Canadian Aboriginal women who have been murdered or gone missing over the past 30 years.  In 2010, Perrier picketed a courthouse in downtown Toronto in recognition of International Day of No Prostitution.  She was joined by Trisha Baptie, Natasha Falle, Katarina MacLeod, and Christine Barkhouse, all former human trafficking victims and sex workers.  In 2012, after being removed from a news conference relating to "Bedford v. Canada", Perrier demonstrated a pimp stick to the media, saying that she had been battered with a pimp stick by her pimp every day that he prostituted her.  Perrier opposed the legalization of brothels as proposed in "Bedford v. Canada", saying, "Having a legal bawdy house is not going to make it any safer.  You are still going to attract serial killers, rapists, perverts."  Bridget shared her story in the ground breaking article by Dr. Vincent J. Felitti in Cancer InCytes magazine (Volume 2, Issue 1) about how childhood trauma is associated with chronic diseases during adulthood, and how child trafficking will eventually worsen the economic burden on civil governance.

Supporting paragraphs: Going, Going, Gone (TV series) Stuart Hall (presenter)
Answer: Stuart Hall