The Public Broadcasting Service (PBS) is an American public broadcaster and non-commercial, free-to-air television network based in Crystal City, Arlington, Virginia. PBS is a publicly funded nonprofit organization and the most prominent provider of educational programs to public television stations in the United States, distributing shows such as Frontline, Nova, PBS NewsHour, Masterpiece, Sesame Street, and This Old House.

Public broadcasting involves radio, television, and other electronic media outlets whose primary mission is public service. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing, and commercial financing, and avoid political interference or commercial influence.