If you happen to be in London on April 19th you have a chance to own a piece of history. A Marconi type–702 television set, which was built using England's then secret radar research, is going up for auction at Bonhams Mechanical Music and Scientific Instruments sale. Built in 1936, the set is believed to be the oldest working television in Britain. From the article: "The machine was bought for almost £100 three weeks after television transmissions began. But Mr GB Davis of Dulwich, south–east London would have only been able to able to watch it for a few hours. The nearby Crystal Palace and its transmitter burned down three days after Mr Davis bought the Marconi type–702 set on November 26. The area could not receive pictures again until 1946."