The Big Bang Theory (2007–2019)
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The Intimacy Acceleration 

1:15 | Trailer
Sheldon and Penny agree to participate in an unusual experiment. Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a "zombie". Howard and Bernadette run into trouble at the airport after returning from Mrs. Wolowitz's funeral.


Mark Cendrowski


Chuck Lorre (created by), Bill Prady (created by) | 8 more credits »


Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny (as Kaley Cuoco-Sweeting)
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Mayim Bialik ... Amy Farrah Fowler
Melissa Rauch ... Bernadette Rostenkowski
Laura Spencer ... Emily Sweeney
Stephanie Escajeda ... Cindy
Molly Morgan ... Hostess
Max Adler ... Zombie




Amy and Raj learn of a scientific experiment designed to see if it can make two people fall in love in the matter of hours. After the gang discusses the viability of the experiment's premise, Sheldon and Penny decide they will test it out to see if it can make them fall in love with each other. The nature of the experiment is to answer truthfully a series of questions followed by staring into each other's eyes without speaking for four minutes. Is there any chance that Sheldon and Penny will fall in love with each other, or at least get to know intimate details about the other that they didn't already know? With Sheldon and Penny occupied with the experiment, Leonard and Amy decide to tag along on Raj and Emily's date, the four who decide to go to an escape room: interactive theater where the participants have to figure out puzzles to escape. This particular room is filled with zombies. Meanwhile, Howard and Bernadette have just arrived at Los Angeles Airport having just returned from... Written by Huggo

Plot Summary | Add Synopsis


Comedy | Romance


TV-PG | See all certifications »

Did You Know?


The flight number Bernadette gives the baggage attendant, '816' is a reference to the episode the show is on, season 8 episode 16. See more »


Sheldon states, "'pontificate' comes from the Latin word 'pontifex', which means bridge builder or Pope". The word 'pontificate' does derive from the Latin word 'pontifex', which referred to members of the college of priests and later to bishops, but with 'pontifex maximus' specifically referring to the pope. The word 'pontifex' never referred to bridge-builders, though it is believed by some that the word 'pontifex' derived from the words 'pons' (bridge) and 'fex' (maker), though many consider this to be a folk-etymology. See more »


Emily Sweeney: Have you ever been to an escape room?
Leonard Hofstadter: What's that?
Emily Sweeney: It's like interactive theater, but with puzzles. There's one downtown where you're trapped in a room with a zombie.
Raj Koothrappali: Kind of like what Penny is doing right now.
See more »

Crazy Credits


I recently found myself reminiscing about an incident that occurred almost thirty years ago. I had just landed my first job as a prime-time sitcom writer and was sitting in a room 'punching up' a script with a few other young writers and a couple of old pros, when one of the gray-haired, comedy mavens grumbled that the mediocre joke we were trying to improve was "good enough" and that we should "move on." He rationalized this by saying, "No one will know the difference" and, "It's just a sitcom." I remember being offended. I quietly promised myself that if I ever got a chance to write and produce my own series I would never think that way. I would never become so jaded and cynical that I squandered the opportunity to entertain people by assuming they "won't know the difference," and by sneeringly regarding what I do for a living as being "just a sitcom." And I never have. But I have wondered what exactly is this thing I do. And I think I've finally figured it out. A sitcom is an extended conversation between writers, actors, directors and the audience. In success, the conversation goes on for years. Pre-internet, the viewers responded simply by watching or not watching. Now their opinions are loud, immediate and fully articulated. And it's great. And it's scary. But it's a real conversation between real people with real feelings. So we all need to choose our words carefully. See more »


References The Bachelor (2002) See more »


History of Everything
Written by Barenaked Ladies
Performed by Barenaked Ladies
[Series theme song played during the opening titles]
See more »

User Reviews

No Non-Stop Laughter, But Still A Good Episode
1 March 2015 | by RbDerajSee all my reviews

In this episode, Sheldon and Penny agree to take part in an experiment to make two people fall in love where they ask each other a series of questions followed by staring into each other's eyes for four minutes. While this goes on, Amy, Raj, Emily, and Leonard go to an "escape room" or an interactive type of theater experience, and Howard and Bernadette search for their lost baggage at the airport that contains Mrs. Wolowitz's ashes.

It was a descent episode with an original story and the best part probably being Bernadette threatening a timid worker at the airport. Penny and Sheldon's friendship is really the spotlight, which was somewhat touching as they happily reminisce about their times together. It was not an episode of nonstop laughter or comedy, but still a good one and nothing to be ashamed of. Also a great ending scene!

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Release Date:

26 February 2015 (USA) See more »

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Aspect Ratio:

16:9 HD
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