Some significant dates in the history of broadcasting in Wales.

These are taken from the list in Broadcasting and the BBC in Wales by the late John Davies, University of Wales Press, 1994.  Used with the author's kind permission.

For this and other books about Television in Wales, please see our Book List.

You might also want to take a look at the main RTS Archives.
 

1922	18 October	Inauguration of the British Broadcasting Company.
1923	13 February  1 March	Cardiff station (5WA) is brought into service. First broadcast talk in the Welsh language.
1924	17 March	Cardiff station moves to Park Place.
1927	1 January	Inauguration of the British Broadcasting Corporation under the first Charter.
1935	31 July  1 November	A half of the households of Wales are licensed to receive radio broadcasts. Opening of the BBC studios at Bangor.
1937	4 July	The Welsh Region begins broadcasting on its own wavelength.
1945	27 July 29 July	First issue of the Welsh edition of the Radio Times. Inauguration of the Light Programme and of the Regional Home Services (including the Welsh Home Service).
1952	15 August	Wenvoe television station is brought into service.
1953	6 January  1 March	First meeting of the Broadcasting Council for Wales. First broadcast of a Welsh-language television programme.
1955	20 December	Welsh Home Service becomes available on VHF from Wenvoe.
1958	14 February	Inauguration of service by Television Wales and the West (TWW) from the St Hilary transmitter.
1959	31 March	Half the households of Wales are licensed to receive television broadcasts.
1962	14 September	Inauguration of Television Wales West and North (TWWN).
1964	1 January	Merger of the output of TWWN with that of TWW.
1965	12 September	BBC2 becomes available from Wenvoe.
1967	1 March 21 August	Broadcasting House, Llandaf, is opened. BBC2 begins regular colour television transmission.
1970	9 July	BBC Wales first broadcasts in colour.
1974	30 September 16 October	Inauguration of Swansea Sound. First broadcast of Pobl y Cwm.
1978	13 November	Relaunch of Radio Wales.
1979	19 November	Relaunch of Radio Cymru.
1980	11 April	Inauguration of the Cardiff Broadcasting Company (CBC).
1982	1 November  2 November	Inauguration of Sianel Pedwar Cymru. Inauguration of Channel 4.
Addenda
1959	10 April	RTS Cardiff and South Wales Centre formed.
1985	2 January	405-line VHF television system shut down.
1998	15 November	Digital terrestrial television launched.
2002	30 October	Freeview launched.
2008	6 May	Freesat launched
2009	12 August	The digital switchover in Wales began with the Kilvey Hill transmitter. It finished with the Wenvoe transmitter on 31st March 2010.
2010	6 December	S4C2 finally ceased broadcasting, when it was removed from Freesat.
2012	12 March	Official opening of BBC Wales's Roath Lock studios.