This documentary traces the evolution of the late sixties CBS variety show, "The Smothers Brothers Comedy Hour," from its humble beginnings, to the heady days of unexpected success and experimentation, to the program's abrupt cancellation over censorship issues.

For those too young to remember, The Smothers Brothers looked like clean-cut American guys, but caught up in the intense social turmoil of the time, they became unlikely spokesmen for an angry new generation, shaping their humor to reflect the tumult of a polarized nation and waging a fierce battle for free expression with their own network's censors. Must-viewing for anyone who lived through this period, or wishes they did.