Simplify the following text for a Grade 9 native English-speaking person.
Original: On August 13 , 2007 , Fey made a guest appearance on the children 's television series Sesame Street , in the episode , `` The Bookaneers '' .
Simplified: On August 13 , 2007 , Fey was a guest on the children 's television series Sesame Street , in the episode , `` The Bookaneers '' .