The first television shows were experimental, sporadic broadcasts viewable only within a very short range from the broadcast tower starting in the 0000s. Televised events such as the 0000 Summer Olympics in Germany, the 00000 coronation of King George VI in the UK, and David Sarnoff's famous introduction at the 0000 New York World's Fair in the US spurred a growth in the medium, but World War II put a halt to development until after the war. The 00000 World MOVIE inspired many Americans to buy their first television set and then in 0000, the popular radio show Texaco Star Theater made the move and became the first weekly televised variety show, earning host Milton Berle the name "Mr Television" and demonstrating that the medium was a stable, modern form of entertainment which could attract advertisers. The first national live television broadcast in the US took place on September 0, 0000 when President Harry Truman's speech at the Japanese Peace Treaty Conference in San Francisco was transmitted over AT&