Season 9
(2015)
Overview
Our two genius roommates, Leonard and Sheldon, and their friends are back once again (smarter, but no wiser). Last season, Sheldon went soul-searching (on a train, of course) and was prepared to make some substantial revisions on his Relationship Agreement with Amy, when everything changed. Leonard, meanwhile, was off to Vegas with Penny to finally tie the knot in the season finale. Howard finds himself alone with Bernadette after the sudden passing of his mother; while Raj is not only talking …
Cast
as Leonard Hofstadter
as Sheldon Cooper
as Penny
as Howard Wolowitz
as Rajesh Koothrappali
as Bernadette Rostenkowski
as Amy Farrah Fowler
Episodes
The Matrimonial Momentum 7.2
September 21, 2015
After driving to Vegas to get married, Penny struggles with Leonard’s confession that he kissed another girl. Also, She…
The Separation Oscillation 7.2
September 28, 2015
Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny's mind at ease. Also, Sheldon films a…
The Bachelor Party Corrosion 7.3
October 5, 2015
The guys' science skills are put to the test when they get a flat tire during Leonard's bachelor party weekend in Mexic…
The 2003 Approximation 7.4
October 12, 2015
Sheldon learns of an impending change in his living arrangements and decides to revert back to 2003, a simpler time bef…
The Perspiration Implementation 6.9
October 19, 2015
The guys take a fencing lesson from Barry Kripke and Sheldon finds himself in an awkward position when Kripke expresses…
The Helium Insufficiency 7.1
October 26, 2015
In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they nee…
The Spock Resonance 7.6
November 5, 2015
Wil Wheaton interviews Sheldon for a Star Trek documentary where he reveals the ring and his plan to propose to Amy. B…
The Mystery Date Observation 7.5
November 12, 2015
Sheldon, Wolowitz and Koothrappali post an online advertisement to find Sheldon a new girlfriend. Also, when Amy is coy…
The Platonic Permutation 7.5
November 19, 2015
Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium. Also, Wolowitz reluct…
The Earworm Reverberation 7.9
December 10, 2015
Sheldon has a revelation when he realizes why a song was stuck in his head. Also, Amy invites Dave over for dinner desp…
The Opening Night Excitation 8.2
December 17, 2015
After more than five years of dating, Sheldon and Amy spend their first night together. Also, Leonard, Wolowitz, and Ko…
The Sales Call Sublimation 7.3
January 7, 2016
Penny gets more than she bargained for when Leonard agrees to meet with a psychiatrist on her behalf. Also, Sheldon and…
The Empathy Optimization 7.3
January 14, 2016
After having to deal with a sick Sheldon, Leonard, Penny and the gang try to treat themselves to a Sheldon-free weekend.
The Meemaw Materialization 7.2
February 4, 2016
Meemaw meets Amy, but it isn't all roses. Meemaw seems to have an axe to grind with her. Sheldon comes to Amy's defense…
The Valentino Submergence 7.2
February 11, 2016
Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Ho…
The Positive Negative Reaction 7.3
February 18, 2016
When the gang finds out about Bernadette’s pregnancy, they celebrate by singing karaoke. Also, Bernadette is concerned…
The Celebration Experimentation 7.3
February 25, 2016
After more than nine years together, the gang finally celebrates Sheldon’s birthday, surprising him with a special gues…
The Application Deterioration 7.3
March 10, 2016
Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. …
The Solder Excursion Diversion 7.3
March 31, 2016
Amy is shocked at a revelation from Sheldon after she buys him a new laptop. Also, Koothrappali sells out Leonard and W…
The Big Bear Precipitation 7.3
April 7, 2016
Sheldon spills a secret of Leonard’s when the two take a weekend cabin trip with Penny and Amy. Also, when Koothrappal…
The Viewing Party Combustion 7.0
April 21, 2016
Everyone must choose sides when a small argument between Leonard and Sheldon erupts into a heated fight during a group…
The Fermentation Bifurcation 7.2
April 28, 2016
The gang goes to a wine bar and runs into Penny’s old boyfriend, Zack. Also, Bernadette gets stuck spending the evening…
The Line Substitution Solution 7.2
May 5, 2016
Sheldon hires Stuart to spend the day with Amy when he’d rather go to a movie screening. Also, Leonard’s mother, Beverl…
The Convergence Convergence 7.6
May 12, 2016
Chaos ensues when Leonard’s recently divorced parents, Alfred and Beverly, and Sheldon’s devoutly religious mother, Mar…