Today in 1971, the BBC filed for a patent on "The Transmission of Alphanumeric Data by Television."
The world's first teletext system, it was first publicly demonstrated on January 4, 1973. Originally conceived as a system for transmitting printable pages of text via dormant TV transmitters at night, the (renamed) CEEFAX system went live on September 23,…
Keep reading with a 7-day free trial
Subscribe to This Day in Data, AI, and Learning to keep reading this post and get 7 days of free access to the full post archives.