The 'Click' Heard 'Round The World

IT'S A TEEVEE!!!.
From www.historychannel.com. (No permalink):

BAIRD DEMONSTRATES TV:
January 27, 1926

"On January 27, 1926, John Logie Baird, a Scottish inventor, gives the first public demonstration of a true television system in London, launching a revolution in communication and entertainment."

As couch potatoes around the world raise their remotes and cheer!