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14 September 1962–1 May 1987
(as a TV production company from 14 September 1962 to 31 October 1982 / as a TV channel since 1 November 1982)
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2 May 1987–6 September 1990
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7 September 1990–4 September 1993
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5 September 1993–9 February 1995
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10 February 1995–31 December 2006
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18 January 2007–9 April 2014
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10 April 2014–January 2015
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January 2015–present
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