The Big Bang Theory (2007– )
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The Maternal Congruence 

Leonard's mother makes a visit to his dismay and Sheldon's delight.

Director:

Mark Cendrowski

Writers:

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

Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Christine Baranski ... Dr. Beverly Hofstadter
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Storyline

It's approaching Christmas, and Leonard's mother is coming for a visit, something Leonard fails to tell Penny. Sheldon surmises it's because Beverly Hofstadter will not approve of Penny as a suitable mate for her son. Leonard has not even yet told Beverly that Penny is his girlfriend. Conversely, when Beverly arrives, Leonard finds out that Sheldon knows more about what's going on in her life than he does. When Leonard does find out news about the senior Hofstadter household, he becomes emotionally distraught as what he deems important news to him was previously withheld. But more importantly, Leonard sees this action as a further demonstration of the poor relationship he has with his family. Meanwhile, Penny believes she has a way for Beverly to be a bit more emotionally expressive. Written by Huggo

Plot Summary | Plot Synopsis

Genres:

Comedy | Romance

Certificate:

See all certifications »
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Details

Official Sites:

Official site

Country:

USA

Language:

English | German

Release Date:

14 December 2009 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs

Runtime:

Sound Mix:

Dolby Digital

Color:

Color

Aspect Ratio:

16 : 9
See full technical specs »
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Did You Know?

Trivia

This episode is a sequel to episode 2.16, The Big Bang Theory: The Maternal Capacitance (2009). See more »

Goofs

At the bar, when Penny tells Beverly she's sleeping with Leonard, the position of Beverly's hand on her shot glass and the amount of liquid in it changes between shots. See more »

Quotes

[first lines]
Penny: Ah, I always tear up when the Grinch's heart grows three sizes.
Sheldon Cooper: Tears seem appropriate. Enlargement of the heart muscle, or hypertrophic cardiomyopathy, is a serious disease which could lead to congestive heart failure.
Leonard Hofstadter: [to Deck the Halls] Fa-la-la, la-la-la, la-la-la.
Penny: You really didn't like it, Sheldon?
Sheldon Cooper: No, on the contrary. I found the Grinch to be a relatable, engaging character. And I was really with him right up to the point that he succumbed to social convention and returned ...
[...]
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Crazy Credits

For this Christmas episode the Executive Producer's credit is shown in red and green instead of the normal white. See more »

Connections

References How the Grinch Stole Christmas! (1966) See more »

Soundtracks

History of Everything (Instrumental version)
(uncredited)
Written by Barenaked Ladies
Performed by Barenaked Ladies
[Instrumental version of series theme song played over the closing credits]
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