"Sesame Street Already Did It" is the 13th and final episode of Season 2, and the 32th overall episode of The Geo Team. It aired on May 1, 1993.
The episode was inspired by the fact that Sesame Street did in fact beat the creators of The Geo Team to an idea. In the episode "Crash the Brave Hero" from Season 1, Geo Guy was supposed to block out the sun. However, one writer revealed that "Sesame Street already did it."