1. The Date Night Variable
Aired: Sep 27, 2012Raj's surprise visit to Sheldon and Amy's anniversary celebration sparks tens...
2. The Decoupling Fluctuation
Aired: Oct 4, 2012Leonard's relationship with Penny is put to the test as she struggles with fe...
3. The Higgs Boson Observation
Aired: Oct 11, 2012A new graduate student joins Sheldon's research team, captivating Amy's atten...
4. The Re-Entry Minimization
Aired: Oct 18, 2012Howard's triumphant return from space is met with lukewarm reception, leaving...
5. The Holographic Excitation
Aired: Oct 25, 2012Raj takes charge of planning a spooky Halloween party at the comic book store...
6. The Extract Obliteration
Aired: Nov 1, 2012Leonard's world is turned upside down when he discovers Penny's hidden academ...
7. The Habitation Configuration
Aired: Nov 8, 2012Howard struggles with leaving his mother's house, grappling with his desire f...
8. The 43 Peculiarity
Aired: Nov 15, 2012Leonard's insecurities are triggered when Penny mentions her study partner at...
9. The Parking Spot Escalation
Aired: Nov 29, 2012A coveted parking spot at the university sparks a heated rivalry between Howa...
10. The Fish Guts Displacement
Aired: Dec 6, 2012Howard's bonding experience with Bernadette's father takes an unexpected turn...
11. The Santa Simulation
Aired: Dec 13, 2012Raj's friends help him search for love at a nightclub, while Sheldon goes on ...
12. The Egg Salad Equivalency
Aired: Jan 3, 2013Office politics ensue when Sheldon's well-meaning attempts to help Leonard na...
13. The Bakersfield Expedition
Aired: Jan 10, 2013The friends' Bakersfield Comic-Con adventure takes a drastic turn when Leonar...
14. The Cooper/Kripke Inversion
Aired: Jan 31, 2013Sheldon's collaboration with Kripke on a project sparks a chaotic attempt to ...
15. The Spoiler Alert Segmentation
Aired: Feb 7, 2013Leonard's living situation takes a dramatic turn after a fiery argument with ...
16. The Tangible Affection Proof
Aired: Feb 14, 2013A Valentine's Day surprise unfolds as Sheldon convinces Alex to buy a gift fo...
17. The Monster Isolation
Aired: Feb 21, 2013A sudden exit from his date sends Raj into a downward spiral, while Sheldon s...
18. The Contractual Obligation Implementation
Aired: Mar 7, 2013Three brilliant scientists, Leonard, Sheldon, and Howard, embark on an educat...
19. The Closet Reconfiguration
Aired: Mar 14, 2013A long-lost letter from Sheldon's estranged father, discovered while organizi...
20. The Tenure Turbulence
Aired: Apr 4, 2013The academic futures of the gang hang in the balance as Leonard, Sheldon, Raj...
21. The Closure Alternative
Aired: Apr 25, 2013Amy assists Sheldon in coming to terms with the conclusion of his beloved TV ...
22. The Proton Resurgence
Aired: May 2, 2013When Raj leaves town, Bernadette and Howard find themselves unexpectedly embr...
23. The Love Spell Potential
Aired: May 9, 2013In the next episode, Raj and Lucy confront their darkest fears during a thril...
24. The Bon Voyage Reaction
Aired: May 16, 2013A job offer in a foreign country sends shockwaves through Penny's life, causi...
