S23E04The Simpsons season 23 episode 4: Replaceable You
Aired 6 November 201123 minRated TV-PG
Where to watch The Simpsons Season 23 in Australia
The Simpsons season 23 is streaming in Australia on Disney+ (subscription, listed for the whole show). You can also buy it on Apple TV from $24.99.
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Availability checked 16 November 2026.
What happens in “Replaceable You”
Lisa's science fair project is overshadowed by Bart's mechanical baby seal; Homer's new assistant ends up stealing his job.
Episode summary: TMDB.
Before you watch
- It is episode 4 of 22 of season 23, so watch episodes 1 to 3 first.
- It runs about 23 minutes.
- Directed by Mark Kirkland, written by Stephanie Gillis.
- TMDB users rate it 6.5 out of 10 (27 votes).
The Simpsons trailer
The official trailer for the series (no preview of this episode has been published).
Play video: The Simpsons trailer
Cast and crew of this episode
- Director
- Mark Kirkland
- Writer
- Stephanie Gillis
- Guest stars
- Jane Lynch as Roz Davis (voice)
Credits: TMDB.
More from The Simpsons Season 23
Every episode of Season 23The Simpsons episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.