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A 45-minute Flex Your Rights documentary on how to deal with police in three situations: traffic stops, encounters at home, and on the street. It presents practical advice on asserting constitutional rights and refusing searches.

An excerpt from the documentary Mountain Talk on Appalachian English. Residents of Southern Appalachia talk about their dialect and give examples of its distinctive words.

Part one of a four-part upload of a BBC Horizon documentary featuring Richard Feynman, in which he talks about physics and looking at the world from another point of view.

A short BBC clip narrated by David Attenborough showing crows in Japan using city traffic to crack nuts, dropping them at intersections and retrieving them when the light changes.

A 1983 behind-the-scenes film about making the HBO 'Feature Presentation' starship logo sequence. It shows the handcrafted miniature city, motion-control cameras and practical effects.

Chapter 11 of the documentary The Corporation, on how marketing targets children, including the Nag Factor study that taught kids to nag their parents more effectively.

The Computer History Museum's 25th anniversary celebration of the Commodore 64, recorded in December 2007, with a panel including Jack Tramiel and Steve Wozniak. It recounts the machine's launch and history.

A 52-minute short version of the documentary The End of Suburbia, about peak oil and the end of cheap energy. It argues that American suburbs depend on cheap oil and may become the slums of the future.

A 1947 US military film that deconstructs how the Nazi regime used divisive propaganda and prejudice to split and control a population. It teaches viewers to recognise demagoguery tactics.

A clip from the documentary American Tongues about the isolated Tangier Island, Virginia, whose dialect is among the most unusual in the US. It is often said to resemble speech from centuries ago.

A 30-minute condensed version of the documentary I.O.U.S.A., which examines the growing US national debt and its consequences.

A dramatization of a hypothetical Soviet first strike that destroys US bombers and Minuteman missiles, filmed with US Air Force cooperation. It is a short version of the 1979 documentary First Strike.

A clip from BBC's Last Chance to See in which Stephen Fry and Mark Carwardine meet Sirocco, a kakapo, who famously tries to mate with Carwardine's head. The kakapo is a critically endangered flightless New Zealand parrot.

Code Rush is a 2000 PBS documentary following Netscape engineers during the year they open-sourced the browser as Mozilla. It shows the pressure and long hours of work in Silicon Valley at the height of the dot-com era.

A short vintage film clip of Seymour Papert, creator of Logo, on using computers to spark children's imagination and learning.

A BBC Weird Nature clip about vervet monkeys in the Caribbean that drink alcohol, and how they split into heavy drinkers, social drinkers and teetotalers.