Rubuta ci gaba don wannan sakin layi - Ana watsa shirye-shiryen rediyo na waje tun farkon 1920s da na talabijin tun daga ƙarshen 1920s. Babbar watsa shirye-shiryen farko a waje ita ce watsa shirye-shiryen talabijin na coronation na George VI da Elizabeth
a watan Mayu na 1937, ya yi ta farko BBC ta waje Broadcast truck, MCR 1 (gajere ga Mobile Control Room).