Where to stream The Big Bang Theory

Season 9

The Big Bang Theory

Comedy
Romance
TV-PG
8.2 / 10

Season released 21st Sep, 2015.

Where to Watch

Apple TV

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Free

All seasons may not be available on all providers.

Season 9 Episodes

S09 Episode 1

The Matrimonial Momentum

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behaviour.

20 mins · Mon, 21 Sep 2015

S09 Episode 2

The Separation Oscillation

Leonard tries to ease Penny's mind; Sheldon plans a special episode of Fun With Flags; Bernadette feels bad about keeping a secret.

19 mins · Mon, 28 Sep 2015

S09 Episode 3

The Bachelor Party Corrosion

A flat tire during Leonard's bachelor party weekend in Mexico puts the guys' skills to the test. Penny is compelled to tell her family that she and Leonard eloped.

19 mins · Mon, 5 Oct 2015

S09 Episode 4

The 2003 Approximation

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

18 mins · Mon, 12 Oct 2015

S09 Episode 5

The Perspiration Implementation

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

18 mins · Mon, 19 Oct 2015

S09 Episode 6

The Helium Insufficiency

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

19 mins · Mon, 26 Oct 2015

S09 Episode 7

The Spock Resonance

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

18 mins · Thu, 5 Nov 2015

S09 Episode 8

The Mystery Date Observation

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

19 mins · Thu, 12 Nov 2015

S09 Episode 9

The Platonic Permutation

Amy and Sheldon spend Thanksgiving at the aquarium, but just as friends. Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette and Penny realises that Leonard knows her better than she thought.

21 mins · Thu, 19 Nov 2015

S09 Episode 10

The Earworm Reverberation

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

21 mins · Thu, 10 Dec 2015

S09 Episode 11

The Opening Night Excitation

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

21 mins · Thu, 17 Dec 2015

S09 Episode 12

The Sales Call Sublimination

Leonard agrees to meet with a psychiatrist on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

18 mins · Thu, 7 Jan 2016

S09 Episode 13

The Empathy Optimization

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

18 mins · Thu, 14 Jan 2016

S09 Episode 14

The Meemaw Materialization

Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy; Raj questions his relationship with Emily after meeting someone new.

18 mins · Thu, 4 Feb 2016

S09 Episode 15

The Valentino Submergence

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard struggle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

19 mins · Thu, 11 Feb 2016

S09 Episode 16

The Positive Negative Reaction

The gang celebrate news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

19 mins · Thu, 18 Feb 2016

S09 Episode 17

The Celebration Experimentation

For the first time in nine years, the gang celebrate Sheldon's birthday.

18 mins · Thu, 25 Feb 2016

S09 Episode 18

The Application Deterioration

Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

19 mins · Thu, 10 Mar 2016

S09 Episode 19

The Solder Excursion Diversion

Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

20 mins · Thu, 31 Mar 2016

S09 Episode 20

The Big Bear Precipitation

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

18 mins · Thu, 7 Apr 2016

S09 Episode 21

The Viewing Party Combustion

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

18 mins · Thu, 21 Apr 2016

S09 Episode 22

The Fermentation Bifurcation

The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned.

19 mins · Thu, 28 Apr 2016

S09 Episode 23

The Line Substitution Solution

Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy; Penny has a difficult time connecting with Leonard's visiting mother.

18 mins · Thu, 5 May 2016

S09 Episode 24

The Convergence Convergence

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit. When they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

19 mins · Thu, 12 May 2016

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