Query: PBS is exclusively a film distributor.

Relevant passages:
PBS <=SEP=> The Public Broadcasting Service ( PBS ) is an American public broadcaster and television program distributor . Headquartered in Arlington , Virginia , PBS is an independently operated non-profit organization and is the most prominent provider of television programming to public television stations in the United States , distributing series such as Keeping Up Appearances , BBC World News , NOVA scienceNOW , NOVA , Barney and Friends , Arthur , Sesame Street , PBS NewsHour , Walking with Dinosaurs , Masterpiece , Nature , American Masters , Frontline , and Antiques Roadshow .   PBS is funded by member station dues , the Corporation for Public Broadcasting , government agencies , corporations , foundations and individual citizens . All proposed funding is subjected to a set of standards to ensure the program is free of influence from the funding source .   Since the mid-2000s , Roper polls commissioned by PBS have consistently placed the service as the most-trusted national institution in the United States . However , PBS is not responsible for all programming carried on public television stations , a large proportion of which ( including most specials aired during pledge drives ) come from affiliates , including such member stations as WGBH , WETA-TV , WNET , WTTW National Productions ) , American Public Television and independent producers . This arbitrary distinction is a frequent source of viewer confusion .   The service has more than 350 member television stations , many owned by educational institutions or non-profit groups affiliated with a local public school district , collegiate educational institution or by state government-owned or - related entities . It also operates National Datacast ( NDI ) , a subsidiary which offers datacasting services via member stations , and provides additional revenue for PBS and its member stations .

Public broadcasting <=SEP=> Public broadcasting includes radio , television and other electronic media outlets whose primary mission is public service . In much of the world , funding comes from the government , especially via annual fees charged on receivers . In the United States , public broadcasters may receive some funding from both federal and state sources , but generally most financial support comes from underwriting by foundations and businesses ranging from small shops to corporations , along with audience contributions via pledge drives . The great majority are operated as private not-for-profit corporations .   Public broadcasting may be nationally or locally operated , depending on the country and the station . In some countries , public broadcasting is run by a single organization . Other countries have multiple public broadcasting organizations operating regionally or in different languages . Historically , public broadcasting was once the dominant or only form of broadcasting in many countries ( with the notable exception of the United States ) . Commercial broadcasting now also exists in most of these countries ; the number of countries with only public broadcasting declined substantially during the latter part of the 20th century .