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The Comic Book Store Experience - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 21
"The Comet Polarization"
Original Air Date:

On The Big Bang Theory Season 11 Episode 21, friendships end up being threatened when Koothrappali takes credit for Penny's astronomical discovery.

The Bachelorette Party - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 20
"The Reclusive Potential"
Original Air Date:

On The Big Bang Theory Season 11 Episode 20, Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Tenant's Association Elections - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 19
"The Tenant Disassociation"
Original Air Date:

On The Big Bang Theory Season 11 Episode 19, when Leonard learns Sheldon is the president of the tenants association, he decides to run against him.

April Fools Prank - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 18
"The Gates Excitation"
Original Air Date:

On The Big Bang Theory Season 11 Episode 18, Sheldon thinks he is the victim of an April Fools prank, and Penny gets the opportunity to host Bill Gates at work.

Home With the Kids - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 17
"The Athenaeum Allocation"
Original Air Date:

On The Big Bang Theory Season 11 Episode 17, Bernadette and Wolowitz must decide who should stay at home with the kids, while Leonard looks for a wedding venue.

Getting Things Started - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 16
"The Neonatal Nomenclature"
Original Air Date:

On The Big Bang Theory Season 11 Episode 16, when Bernadette won't go into labor, all her friends try different tactics to get things started.

The Professor Proton Show - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 15
"The Novelization Correlation"
Original Air Date:

On The Big Bang Theory Season 11 Episode 15, Sheldon petitions Wil Wheaton to appear on the new Professor Proton show, but Wil offers a role to Amy instead.

The Perfect Tenant - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 14
"The Separation Triangulation"
Original Air Date:

On The Big Bang Theory Season 11 Episode 14, when Sheldon rents his old room back for a quiet place to work, he drives Leonard crazy when he is a model tenant.

Leonard and Amy Bond - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 13
"The Solo Oscillation"
Original Air Date:

On The Big Bang Theory Season 11 Episode 13, Amy and Leonard bond during a series of science experiments after Sheldon kicks Amy out so he can work solo.

Secret Experiments - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 12
"The Matrimonial Metric"
Original Air Date:

On The Big Bang Theory Season 11 Episode 12, Sheldon and Amy devise secret experiments to discover who is most qualified to be best man and maid of honor.

We know why you want to watch The Big Bang Theory online. We understand why you would seek to stay up to date on everything surrounding Sheldon, Leonard, Penny, Amy and all others. They are totally hilarious! And they are also involved in many sweet and interesting storyline. That's why you want to watch The Big Bang Theory online and that is why we make it oh so easy for TV Fanatics to do so. We update our episodes section on a weekly basis and we make sure you never fall behind. Sit back and watch The Big Bang Theory online now!

TBBT Quotes

Leonard: Hi. I'm Leonard. You are beautiful. You pop, sparkle and buzz electric. I'm going to pick you up at eight, show you a night you will never forget.
Raj: Where are we going?

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.