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.

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(created by), (created by) | 7 more credits »
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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

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Comedy | Romance

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Release Date:

14 December 2009 (USA)  »

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16 : 9
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Did You Know?

Trivia

In the beginning of this episode Penny, Leonard and Sheldon are watching How the Grinch Stole Christmas (2000). Christine Baranski plays a role in this movie, and in the Big Bang Theory she acts as Leonard's mother. See more »

Goofs

Sheldon states that Christmas had been moved from the summer to December. The Feast of the Nativity of Christ, however, was never celebrated in the summer so cannot correctly be said to have been moved. 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

"CHUCK LORRE PRODUCTIONS, #272 Is this a great world, or what? Happy holidays! From Chuck Lorre" See more »

Connections

References Frosty the Snowman (1969) See more »

Soundtracks

Deck the Halls
(uncredited)
Traditional
Performed by Kaley Cuoco
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User Reviews

 
"The Maternal Congruence" was an excellent holiday episode of "The Big Bang Theory"
28 January 2011 | by (Baton Rouge, La.) – See all my reviews

After Penny and Leonard watch "How the Grinch Stole Christmas" during which Sheldon comments how he felt compatible with the leading character...until he gave the presents back, Sheldon casually mentions Leonard's mother is coming. Tomorrow. Penny is aghast since she didn't know about it and becomes more so when Sheldon also mentions that her boyfriend's mom doesn't know about his relationship with Penny. Actually, Beverly and Sheldon have been e-mailing each other about stuff her son Leonard doesn't know like her surgery, her divorce, and their dog's death...This was another hilarious ep of "The Big Bang Theory" with Christine Baranski's return as Leonard's mom a big treat here. Her delivery with the lines are just sublime here especially when she and Penny have a few drinks. Oh, and just try to keep a straight face when she discusses with Howard his "relationship" with Raj! So on that note, "The Maternal Congruence" was another excellent episode of "The Big Bang Theory".


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