The Radio Planet

The canon of the air

Fifty Broadcasts That Changed History

The transmissions that altered what happened next

Not the best broadcasts — the consequential ones. Programmes that invented a form, moved an argument, built an audience, or told a country something it could not un-hear.

4 entries1925–1962Ranked by hand

Cast a ballot on any entry to move it in the listeners' order.

The head of the list

The Halloween 1938 broadcast of The War of the Worlds put a Sunday-night literary hour on the front page of every newspaper in America and started a permanent argument about what broadcasting can do to an audience. The surviving recording is calmer and cleverer than its reputation: it works because it imitates the news bulletins listeners already trusted.

The night radio discovered it could be believed.

The whole run
00 ballots

Attached: The Last Train Out2026-08-041h 4m

The Mercury Theatre on the Air
The Mercury Theatre on the Air cover

One Washington station recorded from sign-on to sign-off on 21 September 1939, the day Roosevelt asked Congress to revise the Neutrality Act. Soap operas, farm reports, a ball game and a presidential address, in the order a listener actually heard them.

The single most valuable day of tape in American radio.

The whole run
00 ballots

Attached: Signal at Midnight2026-08-0421 min

WJSV: A Complete Broadcast Day

1947 · CBS

One World Flight

Norman Corwin circled the postwar world with a recorder and came back with ordinary people describing what had happened to them. It is the first great piece of international radio reportage built from voices rather than commentary.

The world, interviewed while the rubble was still warm.

The whole run
00 ballots

Attached: Dead Air2026-08-0448 min

One World Flight
One World Flight cover

Four to 4

  1. 1950s · Universal Newsreel

    The Universal Newsreel: The Fifties

    The house style that broadcast news grew out of and then replaced: clipped narration, brass stings, the world in eight minutes. Watching it lose to television at home is the end of this story.

    The voice the news used before it learned to be quiet.

    The whole run
    00 ballots
    6 min transfer

The editors’ order is judgement, not arithmetic; the listeners’ order is your ballots, one per entry, and you can change or withdraw a vote at any time. Programme dates and networks are taken from the surviving broadcast record; the recordings attached are real transfers held in this archive, with their own titles and dates left exactly as they came.