Broadcast networks are organizations that distribute television and radio programs to a wide audience. They use antennas to transmit signals over the air, allowing viewers and listeners to access content without needing a cable subscription. Major broadcast networks in the United States include ABC, CBS, NBC, and FOX. These networks typically produce a variety of programming, including news, sports, and entertainment shows. They reach millions of households and often rely on advertising revenue to fund their operations. Viewers can access broadcast networks using a simple antenna, making them an essential part of the media landscape.