Worlds collide in Season 3! A love affair with Penny has opened a big, wide, wonderful world of romance for Leonard. But Sheldon likes the world just the way it was, thank you. All of which makes for a zany comic triangle with brainy, clueless Sheldon and practical, grounded Penny hilariously vying for the role of hypotenuse.

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.

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.

This season the Big Bang gang's romantic universe expands. On the rebound from Penny, Leonard falls into the arms of Raj's sister Priya. Sheldon gets a girlfriend, or rather a friend who is a girl: Amy, a dour neurobiologist who declares herself besties with Penny. Howard and Bernadette heat up. And so do Raj and Bernadette (at least in Raj's Bollywood daydream). All in the furtherance of award-winning genius comedy.

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. This season, Leonard gets a girl. So does Sheldon. (Sheldon?!), Howard drives the Mars Rover into a ditch, Raj woos a terminator, gorgeous girl-next-door Penny falls under the spell of Age of Conan, and super-smart, uberconfident Leslie Winkler reduces mere men to spineless jellyfish. Includes all 23 episodes, plus never-before-seen featurettes.

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.

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.

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 as a pharmaceutical sales rep.

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 the 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 when they're sitting in a marathon role-playing game.

"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"--Container