2MT

2MT was the first British radio station to make regular entertainment broadcasts, and the world's first regular wireless broadcast for entertainment.

Transmissions began on 14 February 1922 from an ex-Army hut next to the Marconi laboratories at Writtle, near Chelmsford in Essex. Initially the station only had 200 watts and transmitted on 700m (428 kHz) on Tuesdays from 2000 to 2030 - wikipedia

Two Emma Toc, in the spelling alphabet of the day, was a surprising success. The presenter, producer, actor-manager and writer was Captain P. P. Eckersley, a Marconi engineer. His regular announcement; "This is Two Emma Toc, Writtle testing, Writtle testing", became in short time quite well known.

2MT led to the creation of its sister station 2LO, and subsequently the BBC. 2MT did not itself become part of the BBC and closed down on 17 January 1923.

Peter Eckersley went on to become the founding Chief Engineer at the British Broadcasting Company.

The First live radio recital took place at the Marconi Hut at Writtle. The Marconi Hut site is commemorated by a nearby information board at Melba Court — named after Dame Nellie Melba who made Britain's first publicised entertainment broadcast from Marconi's New Street factory — unveiled in 1997 by Marconi's daughter Princess Elettra Marconi. The site was sold off and the land used for housing development in the 1990s.

A significant part of the original Writtle hut is now preserved at the Sandford Mill Museum of Science and Industry in North Chelmsford, where it forms part of a wireless and broadcasting historic exhibit.