Techniques for using wireless technology to transmit speech, instead of Morse signals, began to be developed before World War I but it was after the war that amateur radio became increasingly popular and simple radio receiver sets were developed for a rapidly expanding market. This meant that wireless could be used for ‘broadcasting’ as well as for sending targeted messages.
Marconi’s company pioneered regular broadcasts of information and entertainment in Britain. It organised the first ever broadcast of live public entertainment, by the famous Australian soprano Dame Nellie Melba from the company’s Chelmsford works in 1920. Subsequently it set up broadcasting stations at Writtle in Chelmsford and at Marconi House in London in 1922. Strict regulation was enforced by the Post Office, as the licensing authority for broadcasting. But the increasing clamour for licenses from several organisations resulted in their coming together as the British Broadcasting Company (later ‘Corporation’) in December 1922. The era of popular broadcasting for the home – first by radio, later by television – had begun.