S21E08The Simpsons season 21 episode 8: Oh Brother, Where Bart Thou?
Aired 13 December 200923 minRated TV-PG
Where to watch The Simpsons Season 21 in Australia
The Simpsons season 21 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 “Oh Brother, Where Bart Thou?”
One snowy day in Springfield, Lisa informs Bart that she and Maggie share a bond that Bart will never understand because he doesn't have a brother, so Bart asks Homer for a baby brother. When Homer denies Bart's request, Bart makes his way to the Springfield Orphanage to find what he thinks he's missing.
Episode summary: TMDB.
Before you watch
- It is episode 8 of 23 of season 21, so watch episodes 1 to 7 first.
- It runs about 23 minutes.
- Directed by Steven Dean Moore, written by Matt Selman.
- TMDB users rate it 6.7 out of 10 (22 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
- Steven Dean Moore
- Writer
- Matt Selman
- Guest stars
- Peyton Manning as Peyton Manning (voice)Cooper Manning as Cooper Manning (voice)Huell Howser as Huell Howser (voice)Jordan Nagai as Charlie (voice)Eli Manning as Eli Manning (voice)Kim Cattrall as Fourth Simpsons Child (voice)Pamela Hayden as Milhouse Van Houten / Jimbo Jones (voice)Russi Taylor as Martin Prince / Sherri / Terri / Sisters (voice)
Credits: TMDB.
More from The Simpsons Season 21
Previous · S21E07Rednecks and Broomsticks29 November 2009
Next · S21E09Thursdays with Abie3 January 2010Every episode of Season 21The 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.