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The Big Bang Theory S12E15 — The Donation Oscillation
7.4
The Big Bang Theory•Season 12•Episode 15

The Donation Oscillation

7.4/10 · 3,016 votesFeb 7, 201922 min

Ranked #9 of 24 in Season 12•−0.1 vs season avg

Discussion

Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip.

Directed byMark Cendrowski
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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

Crew7

Mark Cendrowski

Mark Cendrowski

Director

Steve Holland

Steve Holland

Teleplay

A

Adam Faberman

Story

Bill Prady

Bill Prady

Story

David Goetsch

David Goetsch

Teleplay

Jeremy Howe

Jeremy Howe

Story

Maria Ferrari

Maria Ferrari

Teleplay

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Episode Summary

"The Donation Oscillation" is episode 15 of The Big Bang Theory season 12. It scored 7.4/10 from 3,016 votes, ranking #9 of 24 episodes this season (season average 7.5). Directed by Mark Cendrowski, it aired on February 7, 2019.

Next: E16 · The D & D VortexBest of Season 12