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KTLA CW West

Raj and Howard set up an online dating profile for Sheldon and find the perfect woman.

The Big Bang Theory

The Lunar Excitation

CW television services from KEPR D2-TV, 20, Yakima, WA.

Yakima, WA KEPR-D2 CW 20 A3 SD

Leonard tells Penny about how he met Sheldon and what happened to the elevator.

The Staircase Implementation

Sheldon invites a famous physicist to the apartment, and competes with Leonard for her attention.

The Plimpton Stimulation

Sheldon goes to extremes to keep Leonard and Penny happy when they stop speaking to each other.

The Spaghetti Catalyst

Penny and Leonard have a fight that threatens their relationship; Sheldon and Wil Wheaton face off once again.

The Wheaton Recurrence

Sheldon's stage fright stands between him and a coveted award.

The Pants Alternative

When the guys buy a ring from "The Lord of the Rings" at a garage sale, the item threatens to tear them apart.

The Precious Fragmentation

Sheldon ends up in traffic court after getting a ticket because of Penny.

The Excelsior Acquisition

Leonard must choose who to bring with him when he goes to see the Large Hadron Collider on Valentine's Day.

The Large Hadron Collision

Sheldon tries to figure out the answer to a physics problem by working with Penny.

The Einstein Approximation

After their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

The Bozeman Reaction

Sheldon and Koothrappali attend a university mixer; Leonard discovers that Penny believes in psychics.

The Psychic Vortex

Physicists and best friends Leonard and Sheldon learn about the social aspects of life through their relationships with the free-spirited beauty who moves in next door.

S3 E15 | The Large Hadron Collision