How many seasons has the tv show The Simpsons been televised?
The Simpsons is currently in its 23rd season. This season will end in May 2012.
How many years has BBC been running for?
How many years has Fraiser been on?
Frasier was canceled in 2004. Prior to that it ran for 11 seasons. It lives on in reruns.
How many years has sesame street been on the air?
I has been on for 40 years.
How many years has NASA been in business?
simple answer - 50 years