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The Big Bang Theory S8E6 — The Expedition Approximation
7.2
The Big Bang Theory•Season 8•Episode 6

The Expedition Approximation

7.2/10 · 3,890 votesOct 20, 201421 min

Ranked #20 of 24 in Season 8•−0.3 vs season avg

Discussion

Sheldon and Raj test whether they could survive a dark-matter research expedition in a salt mine by simulating the conditions in a steam tunnel deep underground. Meanwhile, Leonard and Penny seek advice from Howard and Bernadette after they fight about money.

Directed byMark Cendrowski
Previous episodeE5 · The Focus AttenuationNext episodeE7 · The Misinterpretation Agitation
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Season 8 Episodes24

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The Locomotion Interruption

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The Junior Professor Solution

The First Pitch Insufficiency stillE3 7.0

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The Hook-Up Reverberation stillE4 7.2

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The Focus Attenuation stillE5 7.5

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The Expedition Approximation

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The Septum Deviation stillE9 7.5

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The Champagne Reflection stillE10 7.0

The Champagne Reflection

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The Space Probe Disintegration stillE12 7.2

The Space Probe Disintegration

The Anxiety Optimization stillE13 7.4

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The Troll Manifestation stillE14 8.0

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The Comic Book Store Regeneration stillE15 8.1

The Comic Book Store Regeneration

The Intimacy Acceleration stillE16 7.8

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The Colonization Application stillE17 7.5

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The Leftover Thermalization stillE18 7.3

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The Skywalker Incursion stillE19 7.5

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The Communication Deterioration stillE21 7.0

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The Graduation Transmission stillE22 7.3

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The Maternal Combustion stillE23 7.5

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The Commitment Determination stillE24 7.9

The Commitment Determination

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

Crew12

Mark Cendrowski

Mark Cendrowski

Director

Jim Reynolds

Jim Reynolds

Teleplay

Steven Molaro

Steven Molaro

Story

Tara Hernandez

Tara Hernandez

Story

N

Nikki Valko

Casting

Steve Holland

Steve Holland

Teleplay

K

Ken Miller

Casting

Peter Chakos

Peter Chakos

Editor

R

Ryan Berdan

Associate Producer

J

Justin D. Hetzel

Associate Producer

S

Scott L. London

Property Master

J

John Shaffner

Production Design

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Episode Summary

"The Expedition Approximation" is episode 6 of The Big Bang Theory season 8. It scored 7.2/10 from 3,890 votes, ranking #20 of 24 episodes this season (season average 7.5). Directed by Mark Cendrowski, it aired on October 20, 2014.

Next: E7 · The Misinterpretation AgitationBest of Season 8