Free to Choose: Watch the original PBS series now
As Brian Doherty notes below, Rose Friedman helped create one of the great statements about the benefits of a libertarian world, Free to Choose (the book version of Free to Choose that my parents received way back when from the Book of the Month Club was instrumental in my own thinking about public policy and just about everything else).
The original 1980 PBS series is available for free streaming at IdeaChannel.tv (so is an updated 1990 series, featuring introductions by folks such as Arnold Schwarzenegger).