Comedian George Carlin is shown in a promotional photo in 1975. Carlin, 71, whose staunch defense of free speech in his most famous routine "Seven Words You Can Never Say On Television" led to a key Supreme Court ruling on obscenity, died Sunday June 22, 2008. In another groundbreaking performance, Carlin served as host of the "Saturday Night Live" debut in 1975.
(Photo: AP Photo/Atlantic Records)
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