← Season 21
THE SIMPSONS · SEASON 21 · EPISODE 8

The Simpsons S21E08 O Brother, Where Bart Thou?

★ 8.2 · GREAT Dec 13, 2009 30 MIN FOX
Still from The Simpsons S21E08: O Brother, Where Bart Thou?

The episode in brief

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.

FAN DESK VERDICT A top-shelf entry. Not quite canon, but you’ll be quoting it all week — the fan desk says don’t skip.

Who’s in it

SERIES REGULARS

Where it sits in the season

TAP A BAR TO JUMP

Where to watch S21E08

US · NOVEMBER 2026
AVAILABILITY IS FOR THE SHOW; NOT EVERY SERVICE CARRIES EVERY EPISODE · LINKS MAY EARN US POPCORN MONEY
8.2
THE FAN VERDICT
Keeper. Goes straight in the rewatch rotation.

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S21E08 FAQ

When did The Simpsons S21E08 air?

The Simpsons S21E08 (“O Brother, Where Bart Thou?”) first aired on December 13, 2009.

Where can I watch The Simpsons S21E08?

In the US, The Simpsons season 21 — including this episode — is available on FX, Hulu, Disney+, fuboTV, DirecTV On Demand, Spectrum On Demand, YouTube TV, FOX One Amazon Channel, Hulu on Disney+, Amazon, Fandango at Home, and AppleTV.

Is The Simpsons S21E08 a good episode?

Fans rate The Simpsons S21E08 (“O Brother, Where Bart Thou?”) 8.2/10, which puts it in the great tier for The Simpsons.