Sesame Street celebrates its 40th year - 10 Nov 09

It's more than just a name on a sign - Sesame Street is a TV show that has made characters like Cookie Monster, Elmo and Big Bird familiar across the world.
 
It is shown in 140 countries and has taught millions of children their alphabet and how to count. 
 
This week, the show turns 40 years old.
 
Cath Turner joined the celebrations in New York.