On January 26th 1926 John Logie Baird gave the world’s first public demonstration of a true television system. This happened in his laboratory at 22 Frith Street in the Soho district of London and present for the demonstration were members of the Royal Institution and a journalist from The Times.
Sony put together an infographic which plots the history of TV production over the last 50 years. You can see the mage below. It is very interesting.