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The Best Episodes From The Big Bang Theory Season 4  

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353 votes 85 voters 24 items

There are so many great episodes of The Big Bang Theory in season 4, but which are your absolute favorite? This list ranks every episode of The Big Bang Theory season 4 from the best to worst, with the help of your votes.

The fourth season of The Big Bang Theory premiered September 23, 2010 and concluded after 24 episodes on May 18, 2011. In season 4 of The Big Bang Theory, Melissa Rauch and Mayim Bialik were upgraded to the main cast. The show received four Emmy nominations and Jim Parsons was recognized again as "Outstanding Lead Actor in a Comedy Series."

Which The Big Bang Theory season 4 episode did you like better, "The Herb Garden Germination" or "The Benefactor Factor"? Vote up the best episodes from The Big Bang Theory season 4 that you'd like to see at the top of the list.

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list ordered by
1
The Herb Garden Germination is listed (or ranked) 1 on the list The Best Episodes From The Big Bang Theory Season 4
Apr 07 2011
Sheldon and Amy decide to start several rumors about the others as a test. Meanwhile, Howard takes his relationship with Bernadette to even higher level.
2
The Cohabitation Formulation is listed (or ranked) 2 on the list The Best Episodes From The Big Bang Theory Season 4
Feb 17 2011
As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister.
3
The Robotic Manipulation is listed (or ranked) 3 on the list The Best Episodes From The Big Bang Theory Season 4
Sep 23 2010
Penny tags along on Sheldon's first ever date; Wolowitz finds a new use for a robotic arm.
4
The Irish Pub Formulation is listed (or ranked) 4 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 28 2010
Leonard keeps an affair a secret from Sheldon, Howard and Raj.
5
The Justice League Recombinati... is listed (or ranked) 5 on the list The Best Episodes From The Big Bang Theory Season 4
Dec 16 2010
The guys find a "super" use for Penny's new boyfriend, Zack, when they enter a costume contest as the Justice League.
6
The Zazzy Substitution is listed (or ranked) 6 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 07 2010
The guys are concerned as Sheldon searches for an alternative to human companionship.
7
The Roommate Transmogrificatio... is listed (or ranked) 7 on the list The Best Episodes From The Big Bang Theory Season 4
May 19 2011
When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap places and Penny does something she's regrets.
8
The Bus Pants Utilization is listed (or ranked) 8 on the list The Best Episodes From The Big Bang Theory Season 4
Jan 06 2011
Leonard's idea for a smartphone app derails his friendship with Sheldon.
9
The Desperation Emanation is listed (or ranked) 9 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 21 2010
Leonard realizes he’s the only one without a girlfriend, while Sheldon wants to get rid of his.
10
The Zarnecki Incursion is listed (or ranked) 10 on the list The Best Episodes From The Big Bang Theory Season 4
Mar 31 2011
Sheldon's World of Warcraft online game account is hacked and he is determined to find out who did it. Also Penny shares some girl talk with her friends about Leonard and his new girlfriend. ...more
11
The Prestidigitation Approxima... is listed (or ranked) 11 on the list The Best Episodes From The Big Bang Theory Season 4
Mar 10 2011
Sheldon is baffled by Wolowitz's magic trick. Meanwhile, Leonard realizes dating Priya may make it impossible to continue being friends with Penny.
12
The Agreement Dissection is listed (or ranked) 12 on the list The Best Episodes From The Big Bang Theory Season 4
Apr 28 2011
When Leonard spends too much time in the shower with Priya, Sheldon charges Leonard with two violations of the roommate agreement. However, before he can get too far, Priya uses her skills as a ...more
13
The Toast Derivation is listed (or ranked) 13 on the list The Best Episodes From The Big Bang Theory Season 4
Feb 24 2011
Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.
14
The 21-second Excitation is listed (or ranked) 14 on the list The Best Episodes From The Big Bang Theory Season 4
Nov 11 2010
While the guys camp in line for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party.
15
The Wildebeest Implementation is listed (or ranked) 15 on the list The Best Episodes From The Big Bang Theory Season 4
May 05 2011
Raj attempts to cure his social anxiety disorder while Penny uses Bernadette to spy on Leonard and his girlfriend.
16
The Engagement Reaction is listed (or ranked) 16 on the list The Best Episodes From The Big Bang Theory Season 4
May 12 2011
When Howard finally breaks the news to his mom that he's engaged to Bernadette, it lands her in the hospital.
17
The Thespian Catalyst is listed (or ranked) 17 on the list The Best Episodes From The Big Bang Theory Season 4
Feb 03 2011
Hoping it will make him a better teacher, Sheldon has Penny give him acting lessons. Raj has fantasies about a friend's girlfriend.
18
The Boyfriend Complexity is listed (or ranked) 18 on the list The Best Episodes From The Big Bang Theory Season 4
Nov 18 2010
Penny asks Leonard to lie to her father, while Howard, Raj and Bernadette pull an all-nighter at a telescope.
19
The Hot Troll Deviation is listed (or ranked) 19 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 14 2010
An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work.
20
The Apology Insufficiency is listed (or ranked) 20 on the list The Best Episodes From The Big Bang Theory Season 4
Nov 04 2010
Sheldon's answers during an FBI interview put Wolowitz's security clearance in jeopardy.
21
The Alien Parasite Hypothesis is listed (or ranked) 21 on the list The Best Episodes From The Big Bang Theory Season 4
Dec 09 2010
Amy finds she has sexual feelings for Penny's ex, while Koothrappali and Wolowitz try to prove who would be the better superhero.
22
The Benefactor Factor is listed (or ranked) 22 on the list The Best Episodes From The Big Bang Theory Season 4
Feb 10 2011
A wealthy donor to the university makes Leonard consider how far he's willing to go for the sake of science.
23
The Cruciferous Vegetable Ampl... is listed (or ranked) 23 on the list The Best Episodes From The Big Bang Theory Season 4
Sep 30 2010
Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span.
24
The Love Car Displacement is listed (or ranked) 24 on the list The Best Episodes From The Big Bang Theory Season 4
Jan 20 2011
Bernadette runs into her ex-boyfriend while attending a science event with Wolowitz.