Charlie Sheen leaves court in March 2010. David Zalubowski/AP hide caption

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A PS22 Chorus member reacts to news that their glee club will perform at the Academy Awards. YouTube.com hide caption

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Charlie Sheen, Angus T. Jones and Conchata Ferrell star in Two And A Half Men, which will cease production for the season because of Sheen's recent personal problems. Greg Gayne/CBS/AP hide caption

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Jeopardy contestants Ken Jennings (left), Brad Rutter and a computer named Watson. Carol Kaelson/AP hide caption

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IBM's Watson computer system competes in a Jeopardy! practice round on Jan. 13 against two of the show's most celebrated contestants: Ken Jennings and Brad Rutter. IBM hide caption

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