[1] Its broadcast areas include: St. Hilary, Cowbridge, Ystradowen, Miskin, Pontyclun, Bonvilston, St. Nicholas, Swansea, Llanelli, West of Barry, Pontypridd, Caerphilly, Mountain Ash, Llantrisant, Church Village and Talbot Green.

[2][1][3] The plan by the Independent Television Authority (ITA) to build a mast at the site was controversial (prompting a House of Lords debate in May 1957[4]).

Objections were noted, the mast height was eventually limited to 229 m (750 ft) and it was built by BICC[5] in Summer 1957 to provide 405-line VHF television to south Wales and the West of England.

Test transmissions commenced on 2 September 1957 on Band III channel 10 (199.75 MHz) from antennas at 340 m above sea level and the station entered television broadcast service on that frequency in January 1958.

[6] In 2006 Ofcom received a proposal[7] for a new Rock-Orientated FM station to transmit from the site, but the licence was awarded to Xfm South Wales, now Nation Radio.