Where to watch The Big Bang Theory Season 5
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The Big Bang Theory Season 5 episodes
S05 E01
The Skank Reflex Analysis
21 mins · Thu, 22 Sep 2011
Penny worries that she's screwed things up with her friends after her night with Raj. Meanwhile, Sheldon takes command of the paintball team.
S05 E02
The Infestation Hypothesis
19 mins · Thu, 22 Sep 2011
A battle of wills between Sheldon and Penny leaves Amy caught in the middle. Leonard tries to spice up his long-distance relationship with Priya, who has moved back to India.
S05 E03
The Pulled Groin Extrapolation
20 mins · Thu, 29 Sep 2011
Leonard goes as Amy's date to a colleague's wedding. Meanwhile, Howard tries to convince Bernadette to live with his mum after they get married and suggests a trial run over the weekend.
S05 E04
The Wiggly Finger Catalyst
20 mins · Thu, 6 Oct 2011
Raj is upset that he's the only one of the four guys not in a relationship, so Penny sets out to find the perfect date. She introduces him to Emily, a girl he can actually talk to.
S05 E05
The Russian Rocket Reaction
21 mins · Thu, 13 Oct 2011
Sheldon and Leonard attend a party hosted by Wil Wheaton where Brent Spiner, who played Commander Data, is a guest.
S05 E06
The Rhinitis Revelation
21 mins · Thu, 20 Oct 2011
Sheldon's mum Mary comes to visit and soon becomes a firm favourite with all of the gang. Sheldon is annoyed with his friends for liking his mum but refuses to believe that he's jealous of the time they're spending with her.
S05 E07
The Good Guy Fluctuation
19 mins · Thu, 27 Oct 2011
Leonard questions his feelings for Priya when he kisses a girl he meets in the comic-book store. The rest of the gang pull pranks on Sheldon in celebration of Halloween.
S05 E08
The Isolation Permutation
21 mins · Thu, 3 Nov 2011
Amy is heartbroken when she finds out that Penny and Bernadette went shopping for bridesmaids dresses without her.
S05 E09
The Ornithophobia Diffusion
21 mins · Thu, 10 Nov 2011
Leonard and Penny attempt to hang out without anybody else around, while Sheldon faces his fear of birds.
S05 E10
The Flaming Spittoon Acquisition
20 mins · Thu, 17 Nov 2011
Sheldon is jealous when Stuart from the comic book shop invites Amy out on a date, so he asks her to be his girlfriend.
S05 E11
The Speckerman Recurrence
19 mins · Thu, 8 Dec 2011
Leonard works up the courage to confront his high-school bully, while Penny realises that her time in high school was marred by the bullying she inflicted on others.
S05 E12
The Shiny Trinket Maneuver
20 mins · Thu, 12 Jan 2012
When Sheldon proves dismissive of Amy's career accomplishments, Penny, Raj and Leonard try to make him realise that sometimes it's beneficial to a relationship to pretend to care about things, even if you aren't really that interested.
S05 E13
The Recombination Hypothesis
21 mins · Thu, 19 Jan 2012
Leonard decides to ask Penny out on a date, and they both agree to give their relationship another chance.
S05 E14
The Beta Test Initiation
20 mins · Thu, 26 Jan 2012
Leonard and Penny decide to put their relationship through a 'beta test', allowing them to report the problems they have with each other as 'bugs'.
S05 E15
The Friendship Contraction
20 mins · Thu, 2 Feb 2012
After Sheldon keeps Leonard awake all night, Leonard decides that he needs a break from Sheldon's thankless demands and the roommate agreement is formally broken, ending the friendship between them.
S05 E16
The Vacation Solution
21 mins · Thu, 9 Feb 2012
Sheldon is forced to use up his two weeks of holiday time from work, so he goes to help Amy in her biology lab during his fortnight off.
S05 E17
The Rothman Disintegration
21 mins · Thu, 16 Feb 2012
When Sheldon and Kripke argue over who should get Professor Rothman's vacant corner office, Leonard, Raj and Howard devise a contest to settle the issue with the office as the winning prize.
S05 E18
The Werewolf Transformation
21 mins · Thu, 23 Feb 2012
Sheldon's world is turned upside down when he learns that the barber who has cut his hair for years has passed away. As his orderly routines descend into chaos, he is forced to act like a hippie in order to match his shaggy new hairstyle.
S05 E19
The Weekend Vortex
20 mins · Thu, 8 Mar 2012
Amy gets upset with Sheldon when he breaks his promise to accompany her to her aunt's birthday party, and instead opts to join the guys for a Star Wars video game marathon lasting the entire weekend.
S05 E20
The Transporter Malfunction
21 mins · Thu, 29 Mar 2012
Desperate to find a 'plus one' to take to a wedding, Raj finally gives up and asks his parents to set him up with a date. Meanwhile, Penny buys Leonard and Sheldon some Star Trek memorabilia.
S05 E21
The Hawking Excitation
19 mins · Thu, 5 Apr 2012
When Stephen Hawking comes to lecture at the university for a week, Wolowitz is given the task of maintaining his wheelchair, making Sheldon green with envy.
S05 E22
The Stag Convergence
21 mins · Thu, 26 Apr 2012
Leonard, Sheldon and Koothrappali throw a classy bachelor party for Wolowitz, during which some stories about the future bridegroom's colourful sexual history are accidentally revealed.
S05 E23
The Launch Acceleration
21 mins · Thu, 3 May 2012
When NASA tells a nervous Wolowitz that his space mission has been rescheduled, he tries to use the wedding as an excuse not to go, but he's forced to agree when he realises that Bernadette's father only likes him because he's an astronaut.
S05 E24
The Countdown Reflection
21 mins · Thu, 10 May 2012
Bernadette decides that she wants to be married to Wolowitz before his NASA space mission takes place. They scramble to organise a wedding ceremony at City Hall in the short time available, but their plans go awry.