Defensive (Military science) -- Videodiscs. : Nazi secrets revealed. The great escape [(DVD) videorecording] / a Windfall Films production for NOVA/WGBH Boston in association with FIVE ; produced by David Dugan ; written and directed by Mark Radice. Nazi secrets revealed. Nazi prison escape / WGBH Educational Foundation ; a Windfall Films production for NOVA/WGBH and Channel 4 ; written, produced and directed by Jeremy Llewellyn-Jones, Chris Durlacher, Henry Chancellor, Adam English, and Melissa Parker.