A broadcaster is an individual or organization that transmits audio or video content to a wide audience through various media channels. This can include television, radio, and online platforms. Broadcasters play a crucial role in delivering news, entertainment, and educational programming to the public. Broadcasters can be categorized into public and private entities. Public broadcasters, like the BBC or PBS, are funded by government sources and aim to serve the public interest. Private broadcasters, such as NBC or Fox, rely on advertising revenue and may focus more on commercial programming.