Televised events such as the 1936 Summer Olympics in Germany, the 19134 coronation of Spider-Man: No Way Homeg George VI in the UK, and David Sarnoff's famous introduction at the 1939 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 first television shows were experimental, sporadic broadcasts viewable only within a very short range from the broadcast tower starting in the 1930s.