Entertainment

The Best Episodes From The Big Bang Theory Season 4  

Reference
359 votes 90 voters 1k views 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.

list ordered by
1
The Herb Garden Germinat... is listed (or ranked) 1 on the list The Best Episodes From The Big Bang Theory Season 4
Apr 07 2011

Season: The Big Bang Theory - Season 4

Episode Number: 20

Director: Mark Cendrowski

Previous Episode: The Zarnecki Incursion

Next Episode: The Agreement Dissection

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 Formula... is listed (or ranked) 2 on the list The Best Episodes From The Big Bang Theory Season 4
Feb 17 2011

Season: The Big Bang Theory - Season 4

Episode Number: 16

Director: Mark Cendrowski

Previous Episode: The Benefactor Factor

Next Episode: The Toast Derivation

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

Season: The Big Bang Theory - Season 4

Episode Number: 1

Director: Mark Cendrowski

Next Episode: The Cruciferous Vegetable Amplification

Penny tags along on Sheldon's first ever date; Wolowitz finds a new use for a robotic arm.
4
The Irish Pub Formulatio... is listed (or ranked) 4 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 28 2010

Season: The Big Bang Theory - Season 4

Episode Number: 6

Director: Mark Cendrowski

Previous Episode: The Desperation Emanation

Next Episode: The Apology Insufficiency

Leonard keeps an affair a secret from Sheldon, Howard and Raj.
5
The Zazzy Substitution ... is listed (or ranked) 5 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 07 2010

Season: The Big Bang Theory - Season 4

Episode Number: 3

Director: Mark Cendrowski

Previous Episode: The Cruciferous Vegetable Amplification

Next Episode: The Hot Troll Deviation

The guys are concerned as Sheldon searches for an alternative to human companionship.
6
The Zarnecki Incursion ... is listed (or ranked) 6 on the list The Best Episodes From The Big Bang Theory Season 4
Mar 31 2011

Season: The Big Bang Theory - Season 4

Episode Number: 19

Previous Episode: The Prestidigitation Approximation

Next Episode: The Herb Garden Germination

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
7
The Justice League Recom... is listed (or ranked) 7 on the list The Best Episodes From The Big Bang Theory Season 4
Dec 16 2010

Season: The Big Bang Theory - Season 4

Episode Number: 11

Director: Mark Cendrowski

Previous Episode: The Alien Parasite Hypothesis

Next Episode: The Bus Pants Utilization

The guys find a "super" use for Penny's new boyfriend, Zack, when they enter a costume contest as the Justice League.
8
The Bus Pants Utilizatio... is listed (or ranked) 8 on the list The Best Episodes From The Big Bang Theory Season 4
Jan 06 2011

Season: The Big Bang Theory - Season 4

Episode Number: 12

Director: Mark Cendrowski

Previous Episode: The Justice League Recombination

Next Episode: The Love Car Displacement

Leonard's idea for a smartphone app derails his friendship with Sheldon.
9
The Desperation Emanatio... is listed (or ranked) 9 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 21 2010

Season: The Big Bang Theory - Season 4

Episode Number: 5

Director: Mark Cendrowski

Previous Episode: The Hot Troll Deviation

Next Episode: The Irish Pub Formulation

Leonard realizes he’s the only one without a girlfriend, while Sheldon wants to get rid of his.
10
The Roommate Transmogrif... is listed (or ranked) 10 on the list The Best Episodes From The Big Bang Theory Season 4
May 19 2011

Season: The Big Bang Theory - Season 4

Episode Number: 24

Director: Mark Cendrowski

When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap places and Penny does something she's regrets.
11
The Prestidigitation App... is listed (or ranked) 11 on the list The Best Episodes From The Big Bang Theory Season 4
Mar 10 2011

Season: The Big Bang Theory - Season 4

Episode Number: 18

Director: Mark Cendrowski

Previous Episode: The Toast Derivation

Next Episode: The Zarnecki Incursion

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

Season: The Big Bang Theory - Season 4

Episode Number: 21

Director: Mark Cendrowski

Previous Episode: The Herb Garden Germination

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 21-second Excitation... is listed (or ranked) 13 on the list The Best Episodes From The Big Bang Theory Season 4
Nov 11 2010

Season: The Big Bang Theory - Season 4

Episode Number: 8

Director: Mark Cendrowski

Previous Episode: The Apology Insufficiency

Next Episode: The Boyfriend Complexity

While the guys camp in line for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party.
14
The Toast Derivation is listed (or ranked) 14 on the list The Best Episodes From The Big Bang Theory Season 4
Feb 24 2011

Season: The Big Bang Theory - Season 4

Episode Number: 17

Director: Mark Cendrowski

Previous Episode: The Cohabitation Formulation

Next Episode: The Prestidigitation Approximation

Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.
15
The Engagement Reaction ... is listed (or ranked) 15 on the list The Best Episodes From The Big Bang Theory Season 4
May 12 2011

Season: The Big Bang Theory - Season 4

Episode Number: 23

When Howard finally breaks the news to his mom that he's engaged to Bernadette, it lands her in the hospital.
16
The Wildebeest Implement... is listed (or ranked) 16 on the list The Best Episodes From The Big Bang Theory Season 4
May 05 2011

Season: The Big Bang Theory - Season 4

Episode Number: 22

Director: Mark Cendrowski

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

Season: The Big Bang Theory - Season 4

Episode Number: 14

Director: Mark Cendrowski

Previous Episode: The Love Car Displacement

Next Episode: The Benefactor Factor

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

Season: The Big Bang Theory - Season 4

Episode Number: 9

Director: Mark Cendrowski

Previous Episode: The 21-second Excitation

Next Episode: The Alien Parasite Hypothesis

Penny asks Leonard to lie to her father, while Howard, Raj and Bernadette pull an all-nighter at a telescope.
19
The Apology Insufficienc... is listed (or ranked) 19 on the list The Best Episodes From The Big Bang Theory Season 4
Nov 04 2010

Season: The Big Bang Theory - Season 4

Episode Number: 7

Director: Mark Cendrowski

Previous Episode: The Irish Pub Formulation

Next Episode: The 21-second Excitation

Sheldon's answers during an FBI interview put Wolowitz's security clearance in jeopardy.
20
The Hot Troll Deviation ... is listed (or ranked) 20 on the list The Best Episodes From The Big Bang Theory Season 4
Oct 14 2010

Season: The Big Bang Theory - Season 4

Episode Number: 4

Director: Mark Cendrowski

Previous Episode: The Zazzy Substitution

Next Episode: The Desperation Emanation

An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work.
21
The Alien Parasite Hypot... is listed (or ranked) 21 on the list The Best Episodes From The Big Bang Theory Season 4
Dec 09 2010

Season: The Big Bang Theory - Season 4

Episode Number: 10

Director: Mark Cendrowski

Previous Episode: The Boyfriend Complexity

Next Episode: The Justice League Recombination

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

Season: The Big Bang Theory - Season 4

Episode Number: 15

Director: Mark Cendrowski

Previous Episode: The Thespian Catalyst

Next Episode: The Cohabitation Formulation

A wealthy donor to the university makes Leonard consider how far he's willing to go for the sake of science.
23
The Cruciferous Vegetabl... is listed (or ranked) 23 on the list The Best Episodes From The Big Bang Theory Season 4
Sep 30 2010

Season: The Big Bang Theory - Season 4

Episode Number: 2

Director: Mark Cendrowski

Previous Episode: The Robotic Manipulation

Next Episode: The Zazzy Substitution

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 Displacemen... is listed (or ranked) 24 on the list The Best Episodes From The Big Bang Theory Season 4
Jan 20 2011

Season: The Big Bang Theory - Season 4

Episode Number: 13

Previous Episode: The Bus Pants Utilization

Next Episode: The Thespian Catalyst

Bernadette runs into her ex-boyfriend while attending a science event with Wolowitz.