Title Airs On

S5:E1 The Skank Reflex Analysis

The Big Bang Theory
09/22/2011 11:26 am EDT

The gang deal with the fallout from Penny and Raj's night together. Amy counsels Penny when she considers moving back to ...read more The gang deal with the fallout from Penny and Raj's night together. Amy counsels Penny when she considers moving back to Nebraska, Bernadette confronts Raj about his crush on her, and Sheldon takes charge of the paintball team. show less

S5:E2 The Infestation Hypothesis

The Big Bang Theory
09/22/2011 11:27 am EDT

Amy gets inadvertently caught in the middle of a fight between Sheldon and Penny over a chair. Leonard tries to add some spice ...read more Amy gets inadvertently caught in the middle of a fight between Sheldon and Penny over a chair. Leonard tries to add some spice to his long-distance relationship with Priya. show less

S5:E3 The Pulled Groin Extrapolation

The Big Bang Theory
09/29/2011 11:27 am EDT

Leonard accompanies Amy to a colleague's wedding. Howard tries to convince Bernadette to live with his mother after they get ...read more Leonard accompanies Amy to a colleague's wedding. Howard tries to convince Bernadette to live with his mother after they get married. show less

S5:E4 The Wiggly Finger Catalyst

The Big Bang Theory
10/01/2011 11:28 am EDT

Penny sets up Raj with a deaf friend, not knowing that she's actually a gold digger, and Sheldon decides to let his minor ...read more Penny sets up Raj with a deaf friend, not knowing that she's actually a gold digger, and Sheldon decides to let his minor decisions rest on the roll of the dice. show less

S5:E5 The Russian Rocket Reaction

The Big Bang Theory
10/13/2011 11:28 am EDT

Sheldon takes offense when Leonard wants to attend a party with Wil Wheaton, while Bernadette tries to block Howard's ...read more Sheldon takes offense when Leonard wants to attend a party with Wil Wheaton, while Bernadette tries to block Howard's opportunity to go into outer space. show less

S5:E6 The Rhinitis Revelation

The Big Bang Theory
10/20/2011 11:29 am EDT

Sheldon gets upset when his mother comes to visit but refuses to cook for him and attend physics lectures.

S5:E7 The Good Guy Fluctuation

The Big Bang Theory
10/27/2011 11:30 am EDT

Sheldon tries to get into the spirit of Halloween by trying to scare the guys after they prank him. Leonard seeks Penny's ...read more Sheldon tries to get into the spirit of Halloween by trying to scare the guys after they prank him. Leonard seeks Penny's advice when an attractive comic book artist takes an interest in him. show less

S5:E8 The Isolation Permutation

The Big Bang Theory
11/03/2011 11:30 am EDT

Amy is hurt when Penny and Bernadette go bridesmaid dress shopping without her, so she turns to a reluctant Sheldon for comfort.

S5:E9 The Ornithophobia Diffusion

The Big Bang Theory
11/10/2011 11:31 am EST

Sheldon tries to overcome his fear of birds, while Leonard and Penny attempt to hang out together strictly as friends.

S5:E10 The Flaming Spittoon Acquisition

The Big Bang Theory
11/17/2011 11:31 am EST

When Stuart asks Amy on a date, Sheldon considers having a more serious relationship with her. Meanwhile, the guys become ...read more When Stuart asks Amy on a date, Sheldon considers having a more serious relationship with her. Meanwhile, the guys become obsessed with a new card game involving Wild West heroes and witches. show less

S5:E11 The Speckerman Recurrence

The Big Bang Theory
12/08/2011 11:32 am EST

Leonard confronts the man who bullied him in high school, while Penny realizes she did her fair share of tormenting in the past.

S5:E12 The Shiny Trinket Maneuver

The Big Bang Theory
01/12/2012 11:33 am EST

Penny helps Sheldon work on his relationship with Amy when he trivializes one of her accomplishments. Howard is irked by ...read more Penny helps Sheldon work on his relationship with Amy when he trivializes one of her accomplishments. Howard is irked by Bernadette's dislike of children. show less

S5:E13 The Recombination Hypothesis

The Big Bang Theory
01/19/2012 11:33 am EST

Leonard and Penny contemplate reviving their romantic relationship.

S5:E14 The Beta Test Initiation

The Big Bang Theory
01/26/2012 11:34 am EST

Leonard and Penny develop a system to ensure their dates go smoothly. Raj finally finds a woman he can talk to - the virtual ...read more Leonard and Penny develop a system to ensure their dates go smoothly. Raj finally finds a woman he can talk to - the virtual assistant on his mobile phone. show less

S5:E15 The Friendship Contraction

The Big Bang Theory
02/02/2012 11:34 am EST

Leonard signs out of his roommate agreement, reducing himself and Sheldon to mere acquaintances, while Howard tries to think of ...read more Leonard signs out of his roommate agreement, reducing himself and Sheldon to mere acquaintances, while Howard tries to think of a cool astronaut nickname for himself. show less

S5:E16 The Vacation Solution

The Big Bang Theory
02/09/2012 11:35 am EST

When the university forces Sheldon to use vacation days, he decides to hang out in Amy's lab. Howard becomes upset when he ...read more When the university forces Sheldon to use vacation days, he decides to hang out in Amy's lab. Howard becomes upset when he hears Bernadette wants him to sign a prenuptial agreement. show less

S5:E17 The Rothman Disintegration

The Big Bang Theory
02/16/2012 11:36 am EST

Sheldon battles Kripke for a coveted office at the university. Penny receives a very unusual gift from Amy.

S5:E18 The Werewolf Transformation

The Big Bang Theory
02/23/2012 11:36 am EST

Sheldon wreaks havoc when he tries to get a haircut from his regular barber, who is ill. Howard runs into a few problems with ...read more Sheldon wreaks havoc when he tries to get a haircut from his regular barber, who is ill. Howard runs into a few problems with astronaut training. show less

S5:E19 The Weekend Vortex

The Big Bang Theory
03/08/2012 11:37 am EST

Sheldon has to choose between joining Amy at her aunt's birthday party or playing videogames all weekend with the guys.

S5:E20 The Transporter Malfunction

The Big Bang Theory
03/29/2012 11:38 am EDT

Raj gets quite a surprise when he asks his parents to set him up on a date. Penny buys Leonard and Sheldon a pair of Star Trek ...read more Raj gets quite a surprise when he asks his parents to set him up on a date. Penny buys Leonard and Sheldon a pair of Star Trek keepsake collectibles. show less

S5:E21 The Hawking Excitation

The Big Bang Theory
04/05/2012 11:39 am EDT

Sheldon uses any and all means to meet his hero, Dr. Stephen Hawking.

S5:E22 The Stag Convergence

The Big Bang Theory
04/26/2012 11:39 am EDT

The guys throw Howard a bachelor party, and some embarrassing details about his life get posted on the Internet.

S5:E23 The Launch Acceleration

The Big Bang Theory
05/03/2012 11:40 am EDT

NASA cancel, and later reinstate Howard's mission into space, coinciding with his wedding. Leonard inadvertently jeopardizes ...read more NASA cancel, and later reinstate Howard's mission into space, coinciding with his wedding. Leonard inadvertently jeopardizes his relationship with Penny. show less

S5:E24 The Countdown Reflection

The Big Bang Theory
05/10/2012 11:40 am EDT

As Howard prepares for his mission into space, flashbacks show the recent events leading up to his and Bernadette's wedding.