This is an interesting video from the Valentes Brothers that discusses Gracie Jiu Jitsu.
Both brothers trained under Helio Gracie from a very young age and produce videos which covers topics on the history of Gracie Jiu Jitsu which are often not covered by modern sport BJJ academies.
http://www.graciemiami.com/
subscribe on their you tube account https://www.youtube.com/user/ValenteBrothersTV?feature=watch
