Closed-circuit television: Difference between revisions

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=== Application ===
Early CCTV systems were installed in central London by the Metropolitan Police between 1960 and 1965.<ref>{{cite web |url=https://professionalsecurity.co.uk/news/case-studies/polices-1960s-cctv-experiments-part-1/ |title=Police’sPolice's 1960s CCTV experiments, part 1 |website=Professional Security Magazine Online |date=2023}}</ref> By 1963 CCTV was being used in Munich to monitor traffic.<ref>{{cite web |url=https://professionalsecurity.co.uk/news/case-studies/polices-1960s-cctv-experiments-part-2/ |title=Police’sPolice's 1960s CCTV experiments, part 2 |website=Professional Security Magazine Online |date=2023}}</ref>
 
Closed-circuit television was used as a form of [[pay-per-view]] [[theatre television]] for sports such as [[professional boxing]] and [[professional wrestling]], and from 1964 through 1970, the [[Indianapolis 500]] automobile race. Boxing telecasts were broadcast live to a select number of venues, mostly theaters, where viewers paid for tickets to watch the fight live.<ref name="Ezra">{{cite book|last=Ezra|first=Michael|title=The Economic Civil Rights Movement: African Americans and the Struggle for Economic Power|date=2013|publisher=[[Routledge]]|isbn=9781136274756|page=105|url=https://books.google.com/books?id=DL41bsCigZcC&pg=PA105|language=en}}</ref><ref name="bloodyelbow">{{cite news|title=History of Prizefighting's Biggest Money Fights|url=https://www.bloodyelbow.com/2017/8/24/16170894/history-of-prizefightings-biggest-money-fights-boxing-mma-ufc|work=[[Bloody Elbow]]|agency=[[SB Nation]]|date=24 August 2017}}</ref> The first fight with a closed-circuit telecast was [[Joe Louis]] vs. [[Jersey Joe Walcott|Joe Walcott]] in 1948.<ref>{{cite book|title=Television|date=1965|publisher=Frederick A. Kugel Company|page=78|url=https://books.google.com/books?id=it0aAQAAMAAJ&q=Louis+Walcott|language=en|quote=Teleprompter's main-spring, Irving B. Kahn (he's chairman of the board and president), had a taste of closed circuit operations as early as 1948. That summer, Kahn, then a vice president of 20th Century-Fox, negotiated what was probably the first inter-city closed circuit telecast in history, a pickup of the Joe Louis-Joe Walcott fight.}}</ref> Closed-circuit telecasts peaked in popularity with [[Muhammad Ali]] in the 1960s and 1970s,<ref name="Ezra" /><ref name="bloodyelbow" /> with "[[The Rumble in the Jungle]]" fight drawing 50{{nbsp}}million CCTV viewers worldwide in 1974,<ref>{{cite news|title=Zaire's fight promotion opens new gold mines|url=https://www.newspapers.com/newspage/28336306/|work=[[The Morning Herald]]|date=18 November 1974|language=en}}</ref> and the "[[Thrilla in Manila]]" drawing 100{{nbsp}}million CCTV viewers worldwide in 1975.<ref>{{cite journal|title=Karriem Allah|journal=[[Black Belt (magazine)|Black Belt]]|date=1976|page=35|url=https://books.google.com/books?id=XtUDAAAAMBAJ&pg=PA35|publisher=Active Interest Media, Inc.|language=en}}</ref> In 1985, the [[WrestleMania I]] professional wrestling show was seen by over one million viewers with this scheme.<ref>{{cite news|title=Wrestlemania In Photographs: 1-10|url=https://www.sportskeeda.com/wwe/wrestlemania-in-photographs-1-10|work=Sportskeeda|date=1 April 2017}}</ref> As late as 1996, the [[Julio César Chávez vs. Oscar De La Hoya]] boxing fight had 750,000 viewers.<ref>[http://articles.chicagotribune.com/1996-06-07/sports/9606070183_1_closed-circuit-sites-las-vegas-oscar-de-la-hoya Chavez-De La Hoya Fight Is A Bout About Contrasts], Chicago Tribune article, 1996-06-07, Retrieved on 2015-02-23</ref> Although closed-circuit television was gradually replaced by [[pay-per-view]] home [[cable television]] in the 1980s and 1990s, it is still in use today for most awards shows and other events that are transmitted live to most venues but do not air as such on network television, and later re-edited for broadcast.<ref name="bloodyelbow" />