Sep. 24, 2007
Returning Series
30 min.
CBS TV Network

Top Contributors

The Big Bang Theory » Season 7
The Big Bang Theory - 07x15 The Locomotive Manipulation

7x15 The Locomotive Manipulation

4.35/5 (46 votes)
First Aired: Feb. 06, 2014 on CBS
Summary: Love is in the air: Sheldon and Amy join Howard and Bernadette for a trip to wine country. And Leonard and Penny rush Raj's dog to the vet.

Watch Episode On:

- Amazon (purchase)
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- Verizon On Demand (purchase)

Main Characters in this Episode

Guest Stars

Yvette played by Tania Raymonde
Eric played by Eric Petersen (VIII)
Waiter played by Alex Ball (III)

Episode Quotes

Raj Koothrappali: You do whatever it takes to save her life. If she needs any new organs I'll buy any dog necessary and scrap them for parts.
Penny: Happy Valentines Day!
Leonard Hofstadter: Flowers and chocolates? You trying to get me out of my panties?
Penny: Don't be surprised if you find five chocolates missing and three gross coconut ones with a bite taken out. Came that way when I bought it.
Leonard Hofstadter: I got you a little something too. [Gives Penny a jewelry box]
Penny: Oh my. Jewelry. [Opens box] Oh, my God. Lakers' tickets!
Leonard Hofstadter: It gets better. Instead of me, you can take someone who will actually enjoy it.
Penny: Aww! You are the best boyfriend ever!
Leonard Hofstadter: Thank you, seriously, please don't make me go.
Howard Wolowitz: A world I don't want to live in. Seriously I don't want to live in this world.


  • Goof (revealing mistake): In the vet's office, when Raj says his line about being Leonard and Penny's worst nightmare, Yvette can be seen biting her lip to keep from laughing.
  • Goof (errors made by characters, possibly deliberate errors by the filmmakers): The locomotives used on the Napa Valley Wine Train were built by the American Locomotive Company, commonly abbreviated to "Alco." However, Amy calls the company "Alcoa."


  • SPOILER: First episode where Sheldon kisses Amy on the lips.
  • This is the 150th episode of the series.
  • Sheldon's question about the type of couplers shows how little he really knows about trains. Couplers of the type he describes have been outlawed since 1893 for safety reasons, and the cars are all-steel construction, indicating they were built around 1910 or later. Also, these coupler types (and the one Eric describes) all have different and distinct appearances, so a quick glance at the exterior of the cars would have clearly indicated what type they were.
  • Title Reference: Sheldon feels that Amy is trying to manipulate him into romance while having dinner aboard a vintage train.
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