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26 October 1958–3 March 1968
(as a TV production company from 26 October 1956 to 13 January 1958 / as a TV channel since 14 January 1958)
[edit]Teledu Cymru (TV block)
[edit]6 June 1961–26 January 1964
[edit]4 March–19 May 1968
[edit]20 May 1968–5 April 1970
[edit]6 April 1970–27 September 1987
[edit]28 September 1987–31 August 1989
[edit]1 September 1989–31 December 1992
[edit]1 January 1993–1 January 1995
[edit]2 January 1995–31 December 1996
[edit]15 January 1997–3 October 1998
[edit]4 October–15 November 1998
[edit]15–28 November 1998
[edit]29 November 1998–7 March 1999
[edit]8 March–31 May 1999
[edit]1 June–7 November 1999
[edit]8 November 1999–31 December 2000
[edit]1 January–1 July 2001
[edit]2 July–10 August 2001
[edit]11 August 2001–27 October 2002
[edit]28 October 2002–31 August 2003
[edit]1 September 2003–31 October 2004
[edit]1 November 2004–15 January 2006
[edit]16 January–12 November 2006
[edit]13 November 2006–8 April 2010
[edit]9 April 2010–13 January 2013
[edit]14 January 2013–present
[edit] 
