10 Awesome Moments From Sesame Street

This year marks the 40th anniversary of Sesame Street. As Newsweek's Lisa Guernsey reports, although the children's show changed the world — intentionally showcasing children of different races living and playing together, and teaching kids about numbers and letters before they hit kindergarten — it's now number 15 in… » 5/26/09 4:00pm 5/26/09 4:00pm