During the 1939 New York World's Fair the IOT was used in the transmission of the first television images from the Empire State Building to the fair grounds.
The Tube | Cathode ray tube | Input/output | X-ray tube | The Tube (TV series) | The Groove Tube | tube | Traveling-wave tube | Tottenham Court Road tube station | cathode ray tube | Youngstown Sheet & Tube Co. v. Sawyer | Westbourne Park tube station | Tube Tales | Torpedo tube | Shoot 'em up#Tube and rail shooters | Piccadilly Circus tube station | Peter and the Test Tube Babies | output | Aldwych tube station | Youngstown Sheet and Tube | Tube | South Kensington tube station | Output Recordings | Mornington Crescent tube station | input/output | Ibanez Tube Screamer | Hammersmith tube station | Golders Green tube station | Eustachian tube | Covent Garden tube station |