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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

Cookie Monster Starts a Health Kick

It's no secret that the friendly monster with a sweet tooth was a hit with kids. But as the child obesity rate increased to epidemic levels, Sesame Street creators realized it was time to put Cookie Monster on a diet. In 2005, the show kicked off the "Healthy Habits for Life" initiative, teaching Cookie Monster that cookies are a "sometimes food."