Sunny days: ‘Sesame Street’ celebrates 45 years

"Sesame Street", the hit children’s TV show that has been broadcast in more than 150 countries, reached yet another milestone Monday as it celebrated its 45th anniversary. "Kermit", "Cookie Monster", and "Elmo" have become household names far beyond the U.S. Its makers, citing a 2013 study, say children who watch one of the international versions of the program average higher "learning outcomes" than kids who don’t. The show has received more television Emmy Awards than any other show in history. Its writers say the name came from the command "Open Sesame!"

That means ‘Sesame Street’’s impact is comparable to dedicated pre-school interventions—but on a vastly larger scale.

"Sesame Street" producers