TV episodes The Best Episodes From The Big Bang Theory Season 4  

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87 votes 27 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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The Herb Garden Germination is listed (or ranked) 1 on the list The Best Episodes From The Big Bang Theory Season 4
The Herb Garden Germination 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.

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The Cohabitation Formulation is listed (or ranked) 2 on the list The Best Episodes From The Big Bang Theory Season 4
The Cohabitation Formulation Feb 17 2011 As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister.

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The Agreement Dissection is listed (or ranked) 3 on the list The Best Episodes From The Big Bang Theory Season 4
The Agreement Dissection 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

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The Justice League Recombinati... is listed (or ranked) 4 on the list The Best Episodes From The Big Bang Theory Season 4
The Justice League Recombination 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.

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The Thespian Catalyst is listed (or ranked) 5 on the list The Best Episodes From The Big Bang Theory Season 4
The Thespian Catalyst 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.

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The Zarnecki Incursion is listed (or ranked) 6 on the list The Best Episodes From The Big Bang Theory Season 4
The Zarnecki Incursion 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

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The Wildebeest Implementation is listed (or ranked) 7 on the list The Best Episodes From The Big Bang Theory Season 4
The Wildebeest Implementation May 05 2011 Raj attempts to cure his social anxiety disorder while Penny uses Bernadette to spy on Leonard and his girlfriend.

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The Alien Parasite Hypothesis is listed (or ranked) 8 on the list The Best Episodes From The Big Bang Theory Season 4
The Alien Parasite Hypothesis 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.

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The Benefactor Factor is listed (or ranked) 9 on the list The Best Episodes From The Big Bang Theory Season 4
The Benefactor Factor Feb 10 2011 A wealthy donor to the university makes Leonard consider how far he's willing to go for the sake of science.

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The Robotic Manipulation is listed (or ranked) 10 on the list The Best Episodes From The Big Bang Theory Season 4
The Robotic Manipulation Sep 23 2010 Penny tags along on Sheldon's first ever date; Wolowitz finds a new use for a robotic arm.

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The Toast Derivation is listed (or ranked) 11 on the list The Best Episodes From The Big Bang Theory Season 4
The Toast Derivation 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.

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The Bus Pants Utilization is listed (or ranked) 12 on the list The Best Episodes From The Big Bang Theory Season 4
The Bus Pants Utilization Jan 06 2011 Leonard's idea for a smartphone app derails his friendship with Sheldon.

Behind-The-Scenes Secrets From The Set Of 'The Big Bang Theory'

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

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The Engagement Reaction is listed (or ranked) 14 on the list The Best Episodes From The Big Bang Theory Season 4
The Engagement Reaction May 12 2011 When Howard finally breaks the news to his mom that he's engaged to Bernadette, it lands her in the hospital.

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The Roommate Transmogrificatio... is listed (or ranked) 15 on the list The Best Episodes From The Big Bang Theory Season 4
The Roommate Transmogrification May 19 2011 When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap places and Penny does something she's regrets.

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The Boyfriend Complexity is listed (or ranked) 16 on the list The Best Episodes From The Big Bang Theory Season 4
The Boyfriend Complexity Nov 18 2010 Penny asks Leonard to lie to her father, while Howard, Raj and Bernadette pull an all-nighter at a telescope.

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The Irish Pub Formulation is listed (or ranked) 17 on the list The Best Episodes From The Big Bang Theory Season 4
The Irish Pub Formulation Oct 28 2010 Leonard keeps an affair a secret from Sheldon, Howard and Raj.

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The Zazzy Substitution is listed (or ranked) 18 on the list The Best Episodes From The Big Bang Theory Season 4
The Zazzy Substitution Oct 07 2010 The guys are concerned as Sheldon searches for an alternative to human companionship.

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The Prestidigitation Approxima... is listed (or ranked) 19 on the list The Best Episodes From The Big Bang Theory Season 4
The Prestidigitation Approximation 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.

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The Desperation Emanation is listed (or ranked) 20 on the list The Best Episodes From The Big Bang Theory Season 4
The Desperation Emanation Oct 21 2010 Leonard realizes he’s the only one without a girlfriend, while Sheldon wants to get rid of his.

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The Hot Troll Deviation is listed (or ranked) 21 on the list The Best Episodes From The Big Bang Theory Season 4
The Hot Troll Deviation Oct 14 2010 An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work.

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The Apology Insufficiency is listed (or ranked) 22 on the list The Best Episodes From The Big Bang Theory Season 4
The Apology Insufficiency Nov 04 2010 Sheldon's answers during an FBI interview put Wolowitz's security clearance in jeopardy.

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The Love Car Displacement is listed (or ranked) 23 on the list The Best Episodes From The Big Bang Theory Season 4
The Love Car Displacement Jan 20 2011 Bernadette runs into her ex-boyfriend while attending a science event with Wolowitz.

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The Cruciferous Vegetable Ampl... is listed (or ranked) 24 on the list The Best Episodes From The Big Bang Theory Season 4
The Cruciferous Vegetable Amplification 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.