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The Big Bang Theory S4E17 — The Toast Derivation
7.9
The Big Bang Theory•Season 4•Episode 17

The Toast Derivation

7.9/10 · 4,371 votesFeb 24, 201121 min

Ranked #17 of 24 in Season 4•−0.1 vs season avg

Discussion

Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.

Directed byMark Cendrowski
Previous episodeE16 · The Cohabitation FormulationNext episodeE18 · The Prestidigitation Approximation
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Season 4 Episodes24

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The Cruciferous Vegetable Amplification

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The Irish Pub Formulation stillE6 8.0

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The Thespian Catalyst stillE14 7.7

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The Benefactor Factor stillE15 7.7

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The Toast Derivation stillE17 7.9Now viewing

The Toast Derivation

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Cast7

Johnny Galecki

Johnny Galecki

Leonard Hofstadter

Jim Parsons

Jim Parsons

Sheldon Cooper

Kaley Cuoco

Kaley Cuoco

Penny

Simon Helberg

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Kunal Nayyar

Rajesh Koothrappali

Melissa Rauch

Melissa Rauch

Bernadette Rostenkowski

Mayim Bialik

Mayim Bialik

Amy Farrah Fowler

Crew9

Steven Molaro

Steven Molaro

Teleplay

Steven Molaro

Steven Molaro

Executive Producer

Mark Cendrowski

Mark Cendrowski

Director

Jim Reynolds

Jim Reynolds

Teleplay

Maria Ferrari

Maria Ferrari

Story

David Goetsch

David Goetsch

Story

Bill Prady

Bill Prady

Story

Chuck Lorre

Chuck Lorre

Teleplay

J

Julie Fleischer

Script Supervisor

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Episode Summary

"The Toast Derivation" is episode 17 of The Big Bang Theory season 4. It scored 7.9/10 from 4,371 votes, ranking #17 of 24 episodes this season (season average 8.0). Directed by Mark Cendrowski, it aired on February 24, 2011.

Next: E18 · The Prestidigitation ApproximationBest of Season 4