Bernadette makes Howard choose between herself and his mother, while Penny and Raj become upset when Priya returns to town and resumes her relationship with Leonard.



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Episode complete credited cast:
Debbie Wolowitz (voice)


Bernadette and Howard discuss where their relationship is heading when Howard once again can't stay the night since he has to look after his mother. When Bernadette broaches the topic of them moving in together, Bernadette ultimately gives Howard an ultimatum: her or his mother. When she asked him this question, she didn't anticipate what Howard wants in a house-mate, sexual partner or not. Meanwhile, Raj's sister Priya is back in town on business. Knowing that Leonard and Priya had casual sex last time she was in town with Leonard wanting their relationship to progress further, Raj refuses to let Leonard see or speak to Priya. But Priya and Leonard do speak, and much to Raj's anger, they decide to start seeing each other. But one other person may be affected by Leonard and Priya dating: Penny. Although Penny outwardly says she is happy for Leonard, Amy, as her new BFF, wants to provide some comfort to Penny, all the while gathering some scientific data. Written by Huggo

Plot Summary | Plot Synopsis

Plot Keywords:

yelling | See All (1) »


Comedy | Romance


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Release Date:

17 February 2011 (USA)  »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

16:9 HD
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Did You Know?


Title reference: The title refers to Howard and Bernadette living together (Cohabitation). See more »


Sheldon tells Penny that it is Thai food, not Chinese as she thinks she has smelled,and proceeds to eat it with chopsticks.In s1 e2 The Big Bran Hypothesis he explained that you don't eat Thai food with chopsticks but use a fork to put the food on a spoon which then goes in the mouth. See more »


Raj Koothrappali: It's completely inappropriate for a single woman to entertain a man in private. If you insist on talking, you must do it on the couch! All right, you may talk in the bedroom, but I want this door to remain open! All right, just this once you may close the door. But keep in mind I'll be right out here monitoring the situation! Oh, damn it. Leonard, when you get this message, call me. Priya, this is your brother. When you get this, tell Leonard to check his voicemail.
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Crazy Credits


Random Things I've Learned in TV

Never ask a question when you know the answer is going to be a lie.

Silence is always bad news.

Strong Nielson ratings guarantee employment, not self-esteem.

Actors can smoke cigarettes because they're immune to carcinogens.

It's safe to talk openly and honestly with people because they're not really listening.

The two major groups in TV show biz are, naturally enough, show people and biz people. Telling them apart is simple. No matter how old they are, 'show' people (usually creative types like writers, actors, directors and musicians) dress like teenagers. Again, regardless of age, 'biz' people (agents, managers, lawyers, company executives) dress like adults. When 'biz' people start dressing like 'show' people it means they've made too much money off the backs of the aforementioned 'show' people. When 'show' people (usually directors) start dressing like 'biz' people, it means they're insecure about their creative involvement and need a hug. See more »


References CSI: NY (2004) See more »


Big Bang Theory Theme
Composed and Performed by Barenaked Ladies
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User Reviews

This show just keeps getting' better
9 March 2011 | by (Joinville, Brazil) – See all my reviews

This episode rocks. Amy Farrah steals the show as usual and provides many good laughs.

It begins a little boring with a scene between Howard and his mother. I personally don't like scenes involving his mom; they're a little over the top and boring to me, but I believe some people may enjoy it. Once this scene is over, the writers are smart enough to gather all the characters and give all of them fast jokes that make you laugh even in a bad day. The jokes involving bestie, crying monkey, social protocol, forbiddings/lack of authority, treating a girl like one's mother, among others, are creative and funny. I really hope "The Big Bang Theory" keeps going like that and improving in every episode. Bottoms up!!

7 of 10 people found this review helpful.  Was this review helpful to you?

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