Where to watch The Big Bang Theory Season 9
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The Big Bang Theory Season 9 episodes
S09 E01
The Matrimonial Momentum
20 mins · Mon, 21 Sep 2015
Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behaviour.
S09 E02
The Separation Oscillation
19 mins · Mon, 28 Sep 2015
Leonard tries to ease Penny's mind; Sheldon plans a special episode of Fun With Flags; Bernadette feels bad about keeping a secret.
S09 E03
The Bachelor Party Corrosion
19 mins · Mon, 5 Oct 2015
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.
S09 E04
The 2003 Approximation
18 mins · Mon, 12 Oct 2015
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.
S09 E05
The Perspiration Implementation
18 mins · Mon, 19 Oct 2015
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.
S09 E06
The Helium Insufficiency
19 mins · Mon, 26 Oct 2015
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.
S09 E07
The Spock Resonance
18 mins · Thu, 5 Nov 2015
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.
S09 E08
The Mystery Date Observation
19 mins · Thu, 12 Nov 2015
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.
S09 E09
The Platonic Permutation
21 mins · Thu, 19 Nov 2015
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.
S09 E10
The Earworm Reverberation
21 mins · Thu, 10 Dec 2015
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.
S09 E11
The Opening Night Excitation
21 mins · Thu, 17 Dec 2015
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.
S09 E12
The Sales Call Sublimination
18 mins · Thu, 7 Jan 2016
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.
S09 E13
The Empathy Optimization
18 mins · Thu, 14 Jan 2016
After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.
S09 E14
The Meemaw Materialization
18 mins · Thu, 4 Feb 2016
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.
S09 E15
The Valentino Submergence
19 mins · Thu, 11 Feb 2016
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.
S09 E16
The Positive Negative Reaction
19 mins · Thu, 18 Feb 2016
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.
S09 E17
The Celebration Experimentation
18 mins · Thu, 25 Feb 2016
For the first time in nine years, the gang celebrate Sheldon's birthday.
S09 E18
The Application Deterioration
19 mins · Thu, 10 Mar 2016
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.
S09 E19
The Solder Excursion Diversion
20 mins · Thu, 31 Mar 2016
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.
S09 E20
The Big Bear Precipitation
18 mins · Thu, 7 Apr 2016
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.
S09 E21
The Viewing Party Combustion
18 mins · Thu, 21 Apr 2016
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.
S09 E22
The Fermentation Bifurcation
19 mins · Thu, 28 Apr 2016
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.
S09 E23
The Line Substitution Solution
18 mins · Thu, 5 May 2016
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.
S09 E24
The Convergence Convergence
19 mins · Thu, 12 May 2016
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.