What does keep the black dog at bay mean? I wonder whether âblack dogâ is used as a pun with âwinter blueâ in the headline. Is âkeep the black dog at bayâ a well-established idiom?
Although many people claim television was invented by Philo Farnsworth in America, it was actually invented by John Logie Baird, a Scotsman who carried out his research in London England. He first demonstrated his system in 1925 and it was in commercial use by 1929.
It was more than a decade before televisions were made and sold commercially. In 1939, RCA began producing a commercially viable product and this represented the first widely available television. In the UK, broadcasting began in 1929 using John Logie Baird's electro-mechanical system first demonstrated in 1925.