In an exclusive and never seen before conversation with his disciples, the Valente Brothers, Grandmaster Helio Gracie discusses the jiu-jitsu belt system.

https://www.youtube.com/watch?v=CJQHfoGQlxI

In this video from http://BloodyElbow.com, action movie star Chuck Norris talks about the trip to Brazil where he first trained with Helio, Rickson and Rorion Gracie.