The Big Bang Theory

Thursdays 8:00 PM on CBS
The big bang theory
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The Big Bang Theory Details

The Big Bang Theory is a sitcom on CBS that's about some seriously funny geniuses, Leonard (Johnny Gelecki) and Sheldon (Jim Parsons). 

The two physicists from Caltech are not only colleagues but also best friends and roommates.  When a beautiful waitress, Penny, breaks up with her boyfriend of four years and moves in across the hall, both sides have something to learn from each other.

Eventually, of course, the series cast expanded to include Penny full-time, along with Amy, Bernadette and many others.

This is the highest-rated sitcom on television by a very wide margin. We cover The Big Bang Theory in depth at TV Fanatic, via weekly reviews, photos, quotes, recaps, spoilers and a lot more.

Network:
Number of Episodes
169
Start Date
Starring
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Seasons:

TBBT Quotes

Penny: Here's a question-- as an alien pretending to be human, are you planning to engage in any post-prom mating rituals with Amy?
Sheldon: There are post-prom mating rituals?
Penny: Not always. Unless your date drives a van with an air mattress, then always.
Sheldon: Well, if it's part of the prom experience, then I'm open to it.
Penny: You're kidding.
Sheldon: I may be an alien, but I have urges.If Amy wants to copulate by firing her eggs into space, well, then, I will happily catch them with the reproductive sac on my upper flermin. I'm not the best at reading facial cues, but I can see that you're a little turned on.

Amy: Sheldon, there's something else I've been wanting to say, but before I do, I just... I want you to know that you don't have to say it back.I know you're not ready, and I don't want you to say it just because social convention dictates...
Sheldon: I love you, too.
Amy: You said it.
Sheldon: There's no denying I have feelings for you that can't be explained in any other way. I briefly considered that I had a brain parasite. But that seems even more far-fetched. The only conclusion was love.