Over the weekend, comedian George Carlin passed away from heart failure. Carlin is best known for not merely pushing the envelope but shredding it to bits in terms of language and subject matter in his comedy. However, one of his classic riffs has to do with sports. Along with Abbott and Costello's "Who's on First" and Bill Cosby's routine on "Street Football," Carlin's contrast of baseball and football stands the test of time as a comical look at the sports landscape. And, of course, in Carlin's case, there is a societal message in the humor.