Hosted by Bill Cosby, the special aired on Friday, April 7, 1989, on NBC.
In the special, comedian Bill Cosby details the history of the show while interacting with various Muppet characters.
Among the subjects featured are the curriculum, the show's adult humor and the foreign co-productions from around the world (e.g. Plaza Sésamo—now Sésamo—and Rechov Sumsum).
Then Kermit the Frog appears in his "Sesame Street News" attire, asking various people (all of which are played by the Muppet Grover) how to get to Sesame Street, and occasionally running into people who had appeared on the show when they were kids.
The special ends with all the characters singing the Sesame Street song “Sing.” The program is dedicated to the memory of Joe Raposo, who had died on February 5, 1989, in Bronxville, New York, of non-Hodgkin lymphoma.