Kammala jumla mai zuwa: Ana watsa shirye-shiryen rediyo na waje tun daga farkon 1920s da na talabijin tun daga ƙarshen 1920s. Na farko mai girma waje watsa shirye-shirye shi ne televising na
Sanyawa George VI da Elizabeth a watan Mayu na 1937, wanda aka yi da motar BBC ta farko ta Watsa shirye-shirye, MCR 1 (gajere don Mobile Control Room).