Editor's note: The direct ancestor of adult-oriented animation like The Simpsons, The Flintstones originally aired at 8:30 PM and Fred and Barney could be spotted advertising Winston cigarettes, back when cigarette commercials still played on television. Only after its initial run did it start airing on Saturday morning for an audience of kids who—like kids who love The Simpsons—found their own style of humor even as the adult jokes went over their heads. Enjoy some fun Flintstones wallpapers!