The Big Bang Theory: The Complete Series (DVD) Season 1-12

The Big Bang Theory follows the irresistible trajectory of genius best buddies Leonard and Sheldon. Joined by street-smart Penny, aerospace engineer Howard, astrophysicist Raj, microbiologist Bernadette and neurobiologist Amy, the friends solve quotidian conundrums posed by academia, family and video games. What they prove across 12 beloved seasons is that the element that matters most in the universe is friendship. Leonard and Sheldon are brilliant physicists, the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door. Sheldon, Leonard's roommate, is quite content spending his nights playing Klingon Boggle with their socially dysfunctional friends, fellow Caltech scientists Wolowitz and Koothrappali. However, Leonard sees in Penny a whole new universe of possibilities ... including love.