Quest: How the World's Most Ambitious Animated Series Came To Television (or, "Quest File 0-37")

via: http://www.metafilter.com/82676/The-Great-Johnny-Quest-Documentary

A two hour and twenty minute documentary on Hanna-Barbera's first foray into action adventure primetime animation back in 1963. Though the original authors of this detailed and meticulous documentary remain unknown, it was reportedly created for a one-time screening at a private event.