The Big Bang Theory (2007– )
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The Locomotive Manipulation 

Sheldon and Amy take a train ride to Napa Valley with Howard and Bernadette on Valentine's Day. Leonard and Penny take Raj's dog to the vet when she accidentally eats some chocolate.



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Episode complete credited cast:
Penny (as Kaley Cuoco-Sweeting)


Amy and Sheldon's annual relationship status discussion takes place in the lead up to Valentine's Day. Amy is able to convince Sheldon to go away for Valentine's to a bed & breakfast in Napa as what Amy hopes will be a romantic weekend will include some familiar faces in Howard and Bernadette going as well but more importantly something specifically for Sheldon, namely a trip on a vintage train to Napa. The question becomes whether both Amy and Sheldon will get out of the trip what they want, which on the surface may be incompatible, and especially as Sheldon's gift of the train trip comes first. Meanwhile, Leonard and Penny have decided to have a romantic stay-at-home Valentine's. As such, they agree to dog-sit Cinnamon while Raj has his own solo romantic Valentine's Day star gazing. Their collective Valentine's Day takes a roller coast ride of emotions because of an incident initiated by Cinnamon. Written by Huggo

Plot Summary | Plot Synopsis




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Release Date:

6 February 2014 (USA)  »

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Aspect Ratio:

16:9 HD
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Did You Know?


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. See more »


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. See more »


Amy Farrah Fowler: A night staring at the stars. That sound pretty romantic to me.
Raj Koothrappali: Not really.
Amy Farrah Fowler: I'm trying to put lipstick on a pig here, so work with me.
See more »

Crazy Credits


I'm thinking of running for Sheriff of Los Angeles County. I have no qualifications but perhaps I could use that as an asset. (In a debate I could say that as far as law enforcement is concerned, I have an unblemished record.) And I could add levity to the proceedings. Maybe run on a platform that emphasizes the need for heavily armed robot cops. My campaign slogan would be, "Robots With Guns! What Could Go Wrong?" I'm also mulling the congressional seat recently opened by the retirement of Henry Waxman. Again, I think my complete lack of experience is a selling point. I'm also a big fan of incompetent government, as the overly organized ones tend to put people like me on trains to Poland. For this elective office I'm thinking I need a campaign slogan that alienates no one. Something along the lines of, "Send me to Congress and watch what happens!" See more »


References Star Wars: Episode IV - A New Hope (1977) See more »


The Big Bang Theory Theme (Instrumental)
Written by The Barenaked Ladies
Performed by The Barenaked Ladies
See more »

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User Reviews

Sheldon and Amy have a moment in "The Locomotive Manipulation" ep of "The Big Bang Theory"
14 February 2014 | by (Baton Rouge, La.) – See all my reviews

With today being Valentine's Day, I finally watched this ep of "The Big Bang Theory" that takes place on this holiday. In order to ensure they both have fun, Amy booked her and Sheldon (and Howard and Bernadette) on a vintage train. However, once there, Sheldon meets a train fanatic and converses with him during most of the trip, to the consternation of everyone else especially Amy. Meanwhile, since Leonard and Penny decide to stay at home, Raj asks them to look after his dog, Cinnamon, while he decides to go star gazing. When those two decide to make love, they leave Cinnamon when they're done, they find out she ate most of the box of chocolates which may prove fatal so they quickly go to a veterinarian. When Raj arrives, he's very upset at them but since the female vet seems to take an interest in him and the dog seems all right, that feeling doesn't last long. I'll stop there and just say that this was another hilarious ep and when that moment arrives between Sheldon and Amy...well, it's one for the books, that's for sure! So on that note, "The Locomotive Manipulation" may become one of the most discussed eps of "The Big Bang Theory" ever!

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