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S15 · E13
The Simpsons
Smart and Smarter
Aired · 25 min
When Maggie is revealed to have an IQ of 167, Lisa, who has an IQ of 159, is no longer the genius of the family, causing a rivalry between the sisters.
- Aired
- Runtime
- 25 min
- Season
- 15
- Episode
- 13
- Rated
- TV-PG