John Logie Baird, 1924.
© NMeM / Daily Herald Archive / Science & Society Picture Library
John Logie Baird (1888-1946), the television pioneer, shown with a Lens Disc Scanner. The photograph was probably taken at 22 Frith Street, Soho, in London. After a serious illnes in 1922, Baird devoted himself to experimentation and developed a crude TV apparatus, able to transmit a picture and receive it over a range of a few feet. The first real demonstration was within two attic rooms in Soho, London, in early 1926. By 1927 he had managed to transmit pictures by telephone line from London to Glasgow.