The invention of television by John Logie Baird
Michael Mosley, Cassie Newland and Mark Miodownik from the BBC series 'The Genius of Invention' describe the scientific achievements of John Logie Baird. In 1920 we had invented cinema and then radio. Scientists and inventors were racing to work out how to combine them into television.
John Logie Baird created the first prototype from four inventions from other people (all described) to develop the first mechanical television. In 1925 he sent the first television image of a ventriloquist's dummy across a room.