Entering its 21st season on Fox, The Simpsons isn’t just a cartoon about a dysfunctional family — it’s the longest-running prime time series in American television history. The Simpsons: An Uncensored, Unauthorized History ($18) tells the show’s surprising tale from its humble beginnings on The Tracy Ullman Show through modern times, complete with interviews of many of the show’s principles, including creator Matt Groening, various writers, animators, and more.