12 Most Memorable 'Sesame Street' Milestones

From Mr. Hooper's death to Cookie Monster quitting cookies, check out these unforgettable moments from 40 years of Sesame Street (13 Photos)

Ali Gray and Christine Petrozzo on Sep 24, 2010 at 1:08PM

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12 Most Memorable 'Sesame Street' Milestones

Richard Termine/TM and Sesame Workshop. All Rights Reserved.

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'Sesame Street' Turns 40

On Nov. 10, 2009, Sesame Street celebrated its 40th anniversary, making it the longest-running children's show on U.S. television. Multiple generations of wide-eyed kids have fallen in love with the entertaining, educational and  inspiring residents of the friendliest street in town, and this season promises even more laughs and life lessons. And giving the show the presidential seal of approval? First Lady Michelle Obama, who opened the40th season as the first celebrity guest. Season 41 begins on Sept. 27.

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