Brougher Mountain

The transmitting station entered full television programme service as a BBC 405-line transmission site.

6 October - 2 November 1978
625-line transmissions began at the Brougher Mountain transmitting site and RTÉ programming was added when the adjacent Cairn Hill transmitter site in the Republic of Ireland went in service on 6 October 1978.

2 November 1978 - 2 December 1983
RTÉ 2 was added at the adjacent Cairn Hill transmitting site when the service began operations on 2 November 1978.

2 December 1983 - 3 January 1985
Channel 4 was added to the Brougher Mountain transmitting station on 2 December 1983

3 January - 5 October 1985
405-line transmissions ceased at Brougher Mountain when the remaining 405-line transmissions closed down for good on 3 January 1985.

5 October 1985 - 29 November 1986
Europa Television, a cooperative venture by RAI (Italy), RTP (Portugal), RTÉ (Ireland), ARD (West Germany) and NOS (Netherlands) was shown in the adjacent Cairn Hill transmitting site when they aired it on a one year trial basis between 5 October 1985 and 29 November 1986

31 October 1996 - 20 September 1998
TG4 was added to the adjacent Cairn Hill transmitting site when the service began operations on 31 October 1996.

20 September 1998 - 24 October 2012
TV3 was added to the adjacent Cairn Hill transmitting site when the service began operations on 20 September 1998.