1920 in British radio
This is a list of events from British radio in 1920.
- January – The first informal and spasmodic broadcasts in the United Kingdom are made by the Marconi Company from Chelmsford in Essex. These broadcasts include both speech and music.
- 23 February–6 March – The Marconi Company broadcasts from Chelmsford a series of 30-minute shows repeated twice daily. These include live music performances.
- 15 June – Australian soprano Dame Nellie Melba becomes history's first well-known professional performer to make a radio broadcast when she sings two arias as part of the series of Marconi broadcasts from Chelmsford.
- November – The Marconi broadcasts from Chelmsford cease after it is claimed they interfere with aircraft and ship communications. They resume in 1922 regularly as 2MT.
- The Shell Book of Firsts 1983. pp. 145–8.