The Big Bang Theory, Season 4

The Big Bang Theory, Season 4 poster

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. And now, that Leonard and Penny have broken up again, all three can test all the variables of being neighbors once more. The result makes for a zany comic triangle with brainy, clueless Sheldon and practical, grounded Penny hilariously vying for the role of hypotenuse to level-headed Leonard. Add to this combustible chemistry, the terminally under-spoken Raj, the over-spoken Howard and guest stars like Apple’s Steve Wozniak and more and you’ve got all the fun of a series that only gets better. Entertainment Weekly raves that the show “has transformed from a cute comedy about eggheads and their hottie neighbor into an addictive ensemble piece that could be this decade’s answer to Friends.” The Big Bang Theory, Season 4 Wiki

The Big Bang Theory, Season 4 Synopsis

1 - The Robotic Manipulation
On the fourth season premiere, Penny (series star KALEY CUOCO) finds herself along for the ride on Sheldon's (series star JIM PARSONS) first date ever. Meanwhile, Wolowitz (series star SIMON HELBERG) finds a new use for a robotic arm. MAYIM BIALIK guest stars as Sheldon's date, Amy Fowler.

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 as Himself.

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.

4 - The Hot Troll Deviation
An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work. Battlestar Galactica's KATEE SACKHOFF and Star Trek's GEORGE TAKEI guest star as themselves as Wolowitz's love gurus. MELISSA RAUCH reprises her role as Howard's girlfriend, Bernadette.

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

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.

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.

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). Meanwhile, Penny and Bernadette invite Amy to her first slumber party.

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.

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.

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.

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.

13 - The Love Car Displacement
Tension runs high when everyone is staying at the same hotel for a science event and Bernadette runs into her ex-boyfriend (guest star RICK FOX, three-time NBA champion with the Los Angeles Lakers).

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.

15 - The Benefactor Factor
A wealthy donor to the university makes Leonard consider how far he's willing to go for the sake of science. JESSICA WALTER (Arrested Development) guest stars as the widowed benefactress and JOSHUA MALINA (The West Wing) guest stars as the University President.

16 - The Cohabitation Formulation
As Wolowitz contemplates taking things with Bernadette to the next level, he must choose between his girlfriend and his mother. Meanwhile, Leonard rekindles his relationship with Raj's sister, Priya.

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.

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.

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

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.

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.

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.

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.

24 - The Roomate Transmorgrification
When Bernadette receives her Ph.D., the guys take joy in reminding an emasculated Wolowitz that he is the only one in their group who isn't a doctor. Meanwhile, Koothrappali becomes Sheldon's new roommate after hearing Leonard and Priya engaging in a Star Trek bedroom fantasy, on the fourth season finale.

The Big Bang Theory, Season 4 Episodes

Episode TitleTimePrice
1The Robotic Manipulation21:24USD 1.99Download
2The Cruciferous Vegetable Amplification20:51USD 1.99Download
3The Zazzy Substitution21:30USD 1.99Download
4The Hot Troll Deviation19:35USD 1.99Download
5The Desperation Emanation20:35USD 1.99Download
6The Irish Pub Formulation21:34USD 1.99Download
7The Apology Insufficiency21:34USD 1.99Download
8The 21-Second Excitation19:16USD 1.99Download
9The Boyfriend Complexity21:04USD 1.99Download
10The Alien Parasite Hypothesis20:11USD 1.99Download
11The Justice League Recombination20:27USD 1.99Download
12The Bus Pants Utilization21:35USD 1.99Download
13The Love Car Displacement21:29USD 1.99Download
14The Thespian Catalyst21:34USD 1.99Download
15The Benefactor Factor20:04USD 1.99Download
16The Cohabitation Formulation20:41USD 1.99Download
17The Toast Derivation21:32USD 1.99Download
18The Prestidigitation Approximation21:04USD 1.99Download
19The Zarnecki Incursion21:33USD 1.99Download
20The Herb Garden Germination21:00USD 1.99Download
21The Agreement Dissection20:58USD 1.99Download
22The Wildebeest Implementation21:18USD 1.99Download
23The Engagement Reaction19:52USD 1.99Download
24The Roomate Transmorgrification21:36USD 1.99Download

The Big Bang Theory, Season 4 Trailer

The Big Bang Theory, Season 4 Comments

The Big Bang Theory, Season 4 Reviews

Love it! Hilarious!  JonEwaD  5 star

Love it! Hilarious!

A must have!  John&Bogusia  5 star

Best show ever. Perfect for everyone. My entire family is very very hooked ....permanently!!!

Bad  Joe1234567890987654231234  1 star

I should start out by telling you what type of sense of humor I have by telling you the shows I like. I like The Office, 30 Rock, Arrested Development, Episodes, Parks and Recreation, Community, Friends, Seinfeld, Will and Grace. But this show is garbage... If u like any of those shows on my list don't watch this it it not smart and not even entertaining.

Joseph Alberts Jr
Big Bang Theory  Joseph Alberts Jr  5 star

I really enjoy the series it's timeless

nitro neene
lol  nitro neene  5 star


My new addiction  Cupcakes4theworld  5 star

Love this show, next to Big Brother. I am new to the show and have begun watching every episode, starting with S1. This show is the best! It's like reality tv, you couldn't write some of this stuff...but it's actually scripted tv.

Shining Star7
truly FASCINATING!  Shining Star7  5 star

This show is my definite favorite! It is so addicting! I have been amazed by every episode. Love TBBT!!!!!!

jon Reef
sound and video sync are constantly off.  jon Reef  1 star

sound and video sync are constantly off.

space  Snowboardbabe19  5 star

how much space does it take up

horseback riding123456789
wow  horseback riding123456789  5 star

i luv the show but have you noticed that something is wrong with almost every season?? sheldon would be vry dissapointed itunes

Great  Tk3tttttuh  5 star

I really love this show

Big bang theroy  KristaReynaldo  5 star

Hahaha i love sheldon

Were?  CrucifiedCorpse  1 star

I can't seem to find the video I bought.

Petro 135
Big bang  Petro 135  5 star

Big bang Is Awesome!!!!!

Great  Cheeseman832  5 star

It is funny

A Horse 0284
The best tv show  A Horse 0284  5 star

The best tv show

Best show  Chrispyhawk  5 star

This is one of the best shows out there

I'm not crazy my mother had me tested...  Apersonofsorta  5 star

I LUVVV big bang theory ooh la la Sheldon

great  ffrug  5 star

there was a review that said it costs 38.39$ to buy the whole season in individual episodes. in HD it costs 83$ to buy the season by individual episodes..???

Bazinga  SCAR1982  5 star

Great show just wish iTunes would have them available sooner or offer streaming till the download is online.

To be 4 or not to be 4  Ouride  1 star

Tried to download episode four after paying for it, except it provided me with episode two. Have tried to contact you to resolve this issue but have been unable to contact you via your link.

Big Bang Theory  Masterhour  5 star

ROFL! Love it and waiting for more

:)  Misslararichie  5 star

love it

yay  philippi  4 star

I love the big bang theory but iTunes this is too expensive for me. Drop the price down to 17.99 like the others… please!!!

What are really reviewing here?  Renayjordan  5 star

Big bang theory is the best show I have seen in ages! I adore Sheldon in a very strange way. Love the addition of more female characters. Can't wait for more. Season 5 here I come. (noticed my review is for the show not about how sucky ITunes is ) iTunes - you are my new addiction!!!!!

Not iTunes Fault...  Joman776  5 star

While it might be all good and well to blame iTunes Aus and compare it to the US and UK stores but it is important to remember that iTunes has no say in when it can upload the new episodes as it is completely reliant on Channel 9 to air the show first, until the network does this iTunes can't post new episodes, so take it up with channel 9 not iTunes... DX CBS is broadcasting Season 5 in the US now... I hope Channel nine can get their act together or at least give the show to a competent network that can give viewers what they want -_-

awesome  tubadrumjingleman  5 star

awesome tv show

the seccombe
Season 4 has Ended  the seccombe  5 star

season 4 has finished but its such a funny show

The Aussie Cartel
The big bang  The Aussie Cartel  5 star

Fantastic show want more.

The Zarnecki Incursion  jurimim  5 star

Where is this episode? It came right after Prestidigitation episode where Sheldon was stumped by Howard's card trick and before the Herb Garden episode where AMy and Sheldon spread gossip. Can we have it uploaded soon?

The Big Bang Theory, Season 4 Critics

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