13. BBC broadcasts aromas via television, April 1, 1965
On April Fools’ Day 1965 the BBC announced a new dimension to their television broadcasts. An interview with a scientist from the University of London revealed that he had perfected a machine which allowed for the broadcast of odors from the studio to receiving sets, with no modification of the sets required. The entire process was completed in the studio, where his machine absorbed the molecules of the aromas and transmitted them over the airwaves. The scientist agreed to a demonstration of his machine, using the pungent aroma of raw onions and the fragrance of freshly brewed coffee, both of which were inserted into his machine. Viewers were asked to call in when they detected the scents.
It didn’t take long before the telephones were ringing in the studio. Scores of viewers from across the United Kingdom called in to report that the machine – which was called smell-o-vision – was a success. Some viewers reported the smell of onions was so strong that it caused their eyes to water. That smell-o-vision was a carefully conceived April Fools’ Day hoax was revealed after the BBC received a multitude of calls from viewers apparently readily susceptible to suggestion. The concept has been revisited in film and television since, though through the use of peripheral equipment rather than the aroma being broadcast through the television receiver.