This is a concept example using mod_include, it's not finished and doesn't have all the videos/audios.
Short IntroductionsEnglishIntroduction to Free Software and the Liberation of Cyberspace (Geneva) with subtitles

By:  Richard Stallman
Event:  TEDx talk
Date:  April 7, 2014
Location:  Salles des fêtes de Carouge, Geneva, Switzerland
Language:  English with subtitles in different languages
Duration:  14min
License:  Creative Commons Attribution-NoDerivatives 3.0 (CC BY-ND 3.0)

Short IntroductionsEnglishWhat is GNU+Linux?

By:  Richard Stallman
Recorded by:  Muktware (Free and open source web magazine)
Date:  2010-2014
Language:  English
Duration:  2min 7s
License:  Creative Commons Attribution-NoDerivatives 3.0 (CC BY-ND 3.0)

Short IntroductionsEnglishWelcome to Software Freedom Day

By:  Richard Stallman
Event:  Software Freedom Day
Date:  September 14, 2010
Language:  English
Duration:  8min 21s
License:  Creative Commons Attribution-NoDerivatives 3.0 (CC BY-ND 3.0)

Short IntroductionsEnglishFree software: ethical, social and practical aspects

By:  Richard Stallman
Year:  2009
Language:  English
Location:  Recorded at the FSF?
Duration:  32min
License:  Creative Commons Attribution-NoDerivatives 3.0 (CC BY-ND 3.0)

Short IntroductionsEnglishLa educación y el conocimiento libres (What free software is and why it matters) in Spanish with subtitles

By:  Richard Stallman
Date:  July 15, 2008
Location  Recorded at the Free Knowledge, Free Technology event in Barcelona, Spain?
Language:  Spanish with subtitles in several languages
Duration:  6min 11s
Copyright © 2008 Richard M. Stallman
License:  Creative Commons Attribution-NoDerivatives 3.0 (CC BY-ND 3.0)

In this six-min video Richard Stallman explains briefly and to the point the principles of Free Software and how they connect to education.

Short IntroductionsEnglishFree Software with subtitles

By:  Richard Stallman
Date:  January 7, 2001
Location:  Recorded in Boston, MA
Language:  English with subtitles
Duration:  29min
Copyright © 2001 Richard Stallman
License:  Creative Commons Attribution-NoDerivatives 3.0 United States (CC BY-ND 3.0)