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Big Bang Theory

11 Seasons

Season 4
4.8 out of 5 stars (1,137) IMDb 8.4/10

Worlds collided last season, when a love affair with Penny (Kaley Cuoco) opened a big, wide, wonderful world of romance for Leonard (Johnny Galecki). Sheldon (Jim Parsons), of course, likes the world just the way it is, thank you. But now, that Leonard and Penny have broken up again, they can test the variables of being neighbors once more.

Starring:
Johnny Galecki, Jim Parsons

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Season 4

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1. The Robotic Manipulation

On the fourth season premiere, Penny finds herself along for the ride on Sheldon's first date ever. Meanwhile, Wolowitz finds a new use for a robotic arm.

CC Runtime: 21 minutes Release date: September 22, 2010
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2. The Cruciferous Vegetable Amplification

When Sheldon realizes he won't live long enough to download his consciousness into a robot body, he attempts to extend his lifespan. Apple Co-Founder STEVE WOZNIAK guest stars.

CC Runtime: 20 minutes Release date: September 29, 2010
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3. The Zazzy Substitution

The guys are concerned as Sheldon searches for an alternative to human companionship after he and Amy (MAYIM BIALIK) break up. LAURIE METCALF reprises her role as Sheldon's mother.

CC Runtime: 21 minutes Release date: October 6, 2010
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4. The Hot Troll Deviation

An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work. KATEE SACKHOFF and GEORGE TAKEI guest star as Wolowitz's love gurus.

CC Runtime: 19 minutes Release date: October 13, 2010
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5. The Desperation Emanation

Leonard realizes he's the only one without a girlfriend, while Sheldon wants to get rid of his.

CC Runtime: 20 minutes Release date: October 20, 2010
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6. The Irish Pub Formulation

A visit from Raj's sister (guest star AARTI MANKAD) creates tension among the guys ��� especially when Leonard keeps an affair secret from Sheldon, Howard and Raj.

CC Runtime: 21 minutes Release date: October 27, 2010
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7. The Apology Insufficiency

When an FBI agent (guest star ELIZA DUSHKU) interviews the guys for Wolowitz's security clearance, Sheldon's answers during the screening, put Wolowitz's clearance in jeopardy.

CC Runtime: 21 minutes Release date: November 3, 2010
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8. The 21 -Second Excitation

When the guys camp in line for a screening, their plans are thwarted by Sheldon's greatest nemesis, WIL WHEATON (guest starring as himself).

CC Runtime: 19 minutes Release date: November 10, 2010
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9. The Boyfriend Complexity

Penny asks Leonard to lie to her father, Wyatt (guest star KEITH CARRADINE), while Howard, Raj and Bernadette pull an all-nighter at a telescope.

CC Runtime: 20 minutes Release date: November 17, 2010
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10. The Alien Parasite Hypothesis

Amy finds she has sexual feelings for Penny's ex, Zack (guest star BRIAN THOMAS SMITH) while Koothrappali and Wolowitz try to prove who would be the better superhero.

CC Runtime: 20 minutes Release date: December 8, 2010
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11. The Justice League Recombination

The guys find a "super" use for Penny's new boyfriend, Zack, when they enter a costume contest as the Justice League.

CC Runtime: 20 minutes Release date: December 15, 2010
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12. The Bus Pants Utilization

Leonard's idea for a smartphone app derails his friendship with Sheldon as they fight for control of the project.

CC Runtime: 21 minutes Release date: January 5, 2011
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13. The Love Car Displacement

Tension runs high when everyone is staying at the same hotel for a science event and Wolowitz worries he can't measure up to Bernadette's ex-boyfriend (guest star RICK FOX).

CC Runtime: 21 minutes Release date: January 19, 2011
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14. The Thespian Catalyst

Sheldon wants Penny to give him acting lessons, hoping that they will help him become a better teacher. Meanwhile, Koothrappali fantasizes about his best friend's girlfriend.

CC Runtime: 21 minutes Release date: February 2, 2011
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15. The Benefactor Factor

A wealthy donor to the university (guest star JESSICA WALTER) makes Leonard consider how far he's willing to go for the sake of science.

CC Runtime: 19 minutes Release date: February 9, 2011
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16. The Cohabitation Formulation

As Howard contemplates taking things with Bernadette to the next level, he must choose between his girlfriend and his mother. Leonard rekindles his relationship with Raj's sister.

CC Runtime: 20 minutes Release date: February 16, 2011
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17. The Toast Derivation

When the gang starts hanging out at Raj's and Sheldon realizes it's actually Leonard who is the center of their social group, Sheldon decides to get a new group of friends.

CC Runtime: 21 minutes Release date: February 23, 2011
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18. The Prestidigitation Approximation

Leonard must choose between his new girlfriend, Priya, and his friendship with Penny. Meanwhile, Howard drives Sheldon crazy with a magic trick.

CC Runtime: 20 minutes Release date: March 9, 2011
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19. The Zarnecki Incursion

When someone hacks Sheldon's online gaming account, the guys go on a quest to find the culprit.

CC Runtime: 21 minutes Release date: March 30, 2011
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20. The Herb Garden Germination

Sheldon and Amy experiment on their friends by spreading gossip, while Howard takes a big step in his relationship with Bernadette.

CC Runtime: 20 minutes Release date: April 6, 2011
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21. The Agreement Dissection

Priya uses her lawyer skills to pick apart the roommate agreement��_and put Sheldon in his place. Meanwhile, the girls take Sheldon dancing.

CC Runtime: 20 minutes Release date: April 27, 2011
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22. The Wildebeest Implementation

Raj attempts to cure his social anxiety disorder of talking to women, while Penny uses Bernadette to spy on Leonard and his girlfriend.

CC Runtime: 21 minutes Release date: May 4, 2011
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23. The Engagement Reaction

When Howard finally breaks the news to his mom that he's engaged to Bernadette, it lands her in the hospital.

CC Runtime: 19 minutes Release date: May 11, 2011
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24. The Roomate Transmorgrification

After hearing Leonard and Priya indulge in a Star Trek bedroom fantasy, Raj moves in with Sheldon on the fourth season finale.

TV-NR CC Runtime: 21 minutes Release date: May 19, 2011
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Customer Reviews

Top Customer Reviews

Format: DVD
** WILL CONTAIN SPOILERS **

Season 4 of 'The Big Bang Theory' had just one thing that separated it from every other show about a group of friends in their late 20's/early 30's: Sheldon Cooper.
When the show first began, it was about a stereotypical Midwestern blonde girl who moves to California to make it big, and she happens to move across the hall from two Caltech geniuses who severely lack the social skills of the average human being. At the beginning of the series, Leonard, Sheldon, Howard and Raj were absorbed by science. The humor was a product of their "experiments" and their inability to fit into the social environment. Here we are four seasons later, and that concept has become scarce as the story has progressed. Sheldon was the only facet of the show that gave it originality this season. I love the show, but it pains me to say that S4 of 'The Big Bang Theory' started to get away from what made it so great.

It baffles me why the show would decide to introduce so many new cast members in such a short period of time. As a guy, when I first watched the show, I didn't take to the 4:1 guys to girls ratio. However, that's one of the things made it unique (see: Seinfeld). Penny was able to hold up a level of femininity that most actresses couldn't. She was the perfect solo female star. Not only does evening the gender ratio make this show like every other comedy on television, but it reduces Penny's role on the show. She didn't need a "posse." The show spent much of Season 4 trying to balance seven main characters (eight once Priya became a regular) when the only ones who really are essential to its continued excellence are Sheldon and Penny.

My synopsis of our "new" characters:
*I'm sorry to say this, but Amy Farrah Fowler is a mess of a character.
Read more ›
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The Big Bang Theory remains one of the funniest shows on TV, and perhaps the only comedy I watch regularly. Despite that, though, it's slipped a bit from the initial seasons in a key way. Those first seasons really made the characters seem like real scientists in that they talked about real science. Scientific references in the dialog weren't just technobabble: they were real physics. The equations on the whiteboard were correct.

It's not that what they have now is incorrect. It's just that it's very infrequent. We almost never see the whiteboard anymore. And the characters rarely make physics or math references. While this may seem minor to some, I thought it added a layer to the show missing from other sitcoms.
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I came into this show late and I had a lot of catching up to do, so I bought seasons 1 and 2 and watched season 3 on television. Then I went on and purchased season 3. I really think this is a great show, at one time it was the most original show on television and now I am noticing that it is steadily changing into a clone of everything else on television. This is a real tragedy because now-a-days with everything being reality shows and boy/girl hook-ups and relationship dramas on television, The Big Bang Theory gave us something new. This show was a breath of fresh air and a necessary escape from the same old teen dramas, and sitcoms that were just teen dramas with laughter in the background. With Leonard, Sheldon, Rajesh (prob.spelled that wrong, sorry folks)Howard and Penny -the show was perfect. When they started adding the girlfriends -Bernadette, Amy, and now Pria, the show began to lose its originality and just became another show about a bunch dudes and thier chicks. However, I love Bernadette, she turned out to be a great character and I now think the show would suffer without her. I have said in other reviews that Amy is the worst, but I will admit her character has gotten a lot better in this season. I think her lines are great, BUT!!! She needs to be separated from Sheldon. These two characters are far too much alike to interact the way they do. Sheldon and Penny work off of each other much better and while at first I really disliked Amy's character I think that they could work with her in other ways, because (again) she did have some great lines this season. Specifically when she called herself setting up boundaries for her and Penny's friendship and then shouted: "DONT TOUCH MY BREASTS", LMFAO!!! that was hilarious. Lately her calling Penny "BFF" is pretty funny too.Read more ›
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`The Big Bang Theory' has become a staple in my television viewing since it first aired and after the past season I was glad to know that the show somewhat redeemed itself from an average second season. This time I am happy to say that season four has added a brand new dimension and that is the addition of more nerdy women!

We only had Penny as a staple female role and she was the polar opposite of our nerdy foursome. When you add the characters of the cute, but not so naive Bernadette and Sheldon in the female form of Amy Fara Fowler, it causes the Big Bang Theory to explode with more hilarity. It is so great to see just how women change these lovable characters in ways you never thought possible. Each episode just made me laugh and it just got better with every new one.

I recommend this show to anyone I know. While it may not be appealing to everyone, it is still one of the most original sitcoms to grace the small screen in a while.
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