It is an american sitcom. This show is centered on five charaters. Two roommate Leonard Hofstadter and Sheldon Cooper, who are brilliant theoretical physicists and work at the California Institute of Technology, The third is their neighbor across the hall Penny, a blonde waitress and aspiring actress, and their two friends Wolowitz and Koothrappali also work with them at Caltech. They creat fun and laugh. Its a best comedy series.

Seasons of The Big Bang Theory

• Season 1

• Season 2

• Season 3

• Season 4

• Season 5

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