Why is television called a “blue screen”? – Arguments and Facts

“Previously TVs do based Cathode ray tube – CRT – told us at the Museum of Television and Radio telecentre” Ostankino “. TV signal in homes and apartments behaved erratically. When the TV has been turned on, but the signal from the TV tower on it has not yet come (or antenna was faulty), the screen is flickering bluish color. Moreover, this effect is in black-and-white television was expressed even better than color. These televisions are long gone, but the name remained.

By the way, today’s plasma and LCD screens are lit in blue in the absence of the TV picture. But they put protection: if there is no signal a few seconds, the TV shuts itself ».