A broadcasting network is a system that transmits audio and video content to a wide audience through various media channels. These networks use radio waves, satellite signals, or cable systems to deliver programming, such as news, entertainment, and sports, to viewers and listeners. Major broadcasting networks include ABC, NBC, and CBS in the United States. Broadcasting networks operate by creating or acquiring content, which is then distributed to local affiliates or directly to consumers. This allows them to reach millions of people simultaneously, making it an essential part of modern communication and media consumption.