The Big Bang Theory Season 12 Episodes

Find out where to watch Season 12 of The Big Bang Theory tonight
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Season 12 Episode Guide

Episode 1 - The Conjugal Configuration

On the season premiere, Sheldon & Amy honeymoon in New York, while Leonard & Penny discover they’re uncomfortably similar to Amy’s parents.
Episode 2 - The Wedding Gift Wormhole

Sheldon and Amy are baffled by Penny and Leonard’s wedding gift; Raj decides he wants his father to find him an arranged marriage.
Episode 3 - The Procreation Calculation

The Wolowitzes’ life gets complicated when Stuart starts bringing his new girlfriend home; Penny and Leonard talk about starting a family.
Episode 4 - The Tam Turbulence

When Sheldon won’t tell anyone why he’s never mentioned Tam, his childhood best friend, Leonard takes matters into his own hands.
Episode 5 - The Planetarium Collision

Sheldon sabotages Amy’s career and gets a ghostly visit from an old friend; Raj refuses Howard’s offer to co-host a planetarium show.
Episode 6 - The Imitation Perturbation

When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party.
Episode 7 - The Grant Allocation Derivation

Leonard regrets his newfound authority when he’s responsible for distributing grant money; Bernadette turns the playhouse into her hideaway.
Episode 8 - The Consummation Deviation

Sheldon tries to bond with Amy’s parents, but Howard lures Mr. Fowler away with magic tricks; Raj & Anu have trouble making things physical.
Episode 9 - The Citation Negation

Sheldon and Amy are devastated to learn that Super-Asymmetry has already been disproven; Stuart’s girlfriend teaches Bernadette Fortnite.
Episode 10 - The VCR Illumination

Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon’s past inspires him not to give up.
Episode 11 - The Paintball Scattering

A paintball game causes mayhem when Sheldon is jealous of Amy, Raj catches Anu with her ex, and Stuart doesn’t want to move in with Denise.
Episode 12 - The Propagation Proposition

Penny’s ex-boyfriend Zack and his wife want a baby, but when he’s infertile, they ask Leonard for help; Raj tries to mend things with Anu.

Episode 13 - The Confirmation Polarization

A rival team of Physicists tries to take credit for Amy and Sheldon’s Super Asymmetry theory; Bernadette has a big success at work.

Episode 14 - The Meteorite Manifestation

Sheldon is thrilled to help Howard & Bernadette navigate bureaucratic paperwork… until he discovers they are breaking the law.

Episode 15 - The Donation Oscillation

Penny tries to seduce an abstaining Leonard to ruin his donation for Zack; Howard, Bernadette, Anu and Raj go on a couple’s trip.
Episode 16 - The D & D Vortex

The guys try to crash Wil Wheaton’s Dungeons & Dragons game involving William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith.

Episode 17 - The Conference Valuation

While Penny and Bernadette are away at a pharmaceutical convention, Sheldon, Leonard, Howard, Raj and Amy experiment on the Wolowitz kids.

Episode 18 - The Laureate Accumulation

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates to their side.

Episode 19 - The Inspiration Deprivation

The weight of winning a Nobel Prize weighs heavy on Amy’s shoulders; Raj and Howard try to relive the good old days.

Episode 20 - The Decision Reverberation

Penny encourages Leonard to stand up for himself; Raj is worried after publishing a paper suggesting he may have discovered alien life.

Episode 21 - The Plagiarism Schism

When Barry finds proof that Dr. Pemberton plagiarized his college thesis, Sheldon and Amy try to take the high road for the Nobel Prize.

Episode 22 - The Maternal Conclusion

Leonard’s surprised when Beverly comes to visit and she’s genuinely kind to him; Denise and Stuart overstay their welcome at the Wolowitz’s.
Episode 23 - The Change Constant

Everything changes as Sheldon and Amy await big news in part one of the series finale.

Episode 24 - The Stockholm Syndrome

It’s an end and a beginning as the gang travel together on part two of the series finale.



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