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Posted on January 13, 2014 at 10:41 AM
Updated Monday, Jan 13 at 11:00 AM
"Sesame Street" has been airing for 40 years and is now shown in more than 150 countries and earns more Emmys than any other show on television. CBS News correspondent Mo Rocca goes to the set of "Sesame Street" to learn the art of puppeteering.