The Simpsons - Season 23 Episode 4 Replaceable You
Lisa's science fair project is overshadowed by Bart's mechanical baby seal; Homer's new assistant ends up stealing his job.
- Genre: Family, Animation, Comedy
- Studio: FOX
- Keyword: nuclear power plant, middle class, cartoon, satire, parody, dysfunctional family, school, social satire, family, adult animation, sitcom, animation
- Cast: Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer
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