Regarding the opposite sex, they're on a steep learning curve. In every other sense, they're geniuses. Join physicists Leonard Hofstadter (Johnny Galecki) and Sheldon Cooper (Jim Parsons) as they ponder black holes, chemical deviations, girls, and other mysteries of the universe.

Socially challenged they remain, but the scientific geniuses of the show always deliver hilarious results. Leonard returns from his North Sea expedition to find that his relationship with Penny involves more beta-testing than he's ever done in a lab. Howard's attachment issues with women in his life in particular and Raj's social breakthrough with women in general provide more laughs. Bernadette and Amy stand staunchly by the men in their lives, even...

He's baaack! Sheldon is retrieved from his soul-searching cross-country train trip (older but no wiser) and that means the gang's all here to spread another year's cheer as TV's most attended laugh seminar. Enroll in this comic curriculum to explore Leonard's minor surgery becoming a major catastrophe from his roommate, Howard's obsession over his mom's relationship with retailer-turned-caretaker Stuart, and the peculiar results of Penny's technique...

It's been nearly 30 years since Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished. Now, a new team, led by physicist Ben Song, has been assembled to restart the project in hope of understanding the mysteries behind the machine and the man who created it. Everything changes, however, when Ben makes an unauthorized leap into the past, leaving the team behind to solve the mystery of why he did it. At Ben's side throughout his leaps...

Despite their on-again, off-again relationship in the past, Leonard and Penny have finally gotten married. Even Sheldon has found a female companion, entering into a 'relationship agreement' with neurobiologist Amy Farrah Fowler, and he recently took their relationship to the next level by marrying her after a long courtship. Will their equation for marital bliss alter the chemistry between these two beautiful minds? Quantum comedy converges in the...

The Leonard and Penny went from next-door neighbors to next-door newlyweds with a nuptial excursion to Vegas. This season, they find themselves in a repeating paradigm as they re-create their wedding, this time with family including Penny's mother and brother and Leonard's parents. Meanwhile, the Relationship Agreement between Sheldon and Amy added an entirely new subsection with their annual coitus clause.

Physicists Leonard and Sheldon understand everything from the inescapable gravitational pull of a black hole to the intricate structure of the atom. But take those atoms and assemble them into a woman, and their comprehension comes to a grinding halt. And when Penny, a woman with all those atoms in all the right places, moves in across the hall, Leonard and Sheldon's universe begins to expand in ways they never could have imagined.

A German physicist and his mentor turned rival.

Season six kicks off in space, where Howard is caught in an argument between Bernadette and his mom. Back on Earth, Sheldon decides to hire, Alex, a young female assistant which makes Amy feel threatened. Meanwhile, Leonard and Penny make strides to define their relationship and Raj attempts to find love. Find out what surprises are in store for everyone, once Howard returns home in these twenty four must watch episodes.