The Simpsons: Season 9 Episode 17: Lisa the Simpson
Starring: Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer, Martin Sheen, Marcia Wallace
Length: 30 minutes
The Simpsons: S09E17 Description: Lisa fears she is losing her intelligence when she learns about the fabled Simpson gene. Meanwhile, Jasper freezes himself in the Kwik-E-Mart freezer.