Prewar television stations were broadcast stations that operated before World War II. They broadcast TV shows and news to people's homes. These stations used big antennae to send the signal over long distances. That signal was picked up by TV sets, which were like the TVs of today, but much bigger. Inside the TV set, the signal was changed into a picture or video so that people could watch. Prewar television stations were important because they helped spread news and entertainment around the world.