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The Big Bang Theory fanart Welcome to The Big Bang Theory at WatchOnlineFree.TV, a great website for those who love to watch The Big Bang Theory online for free. Here you can stream all episodes online without having to downloading any additional software on your computer. If you missed the latest The Big Bang Theory episode on TV, make sure to check our website to follow up on this series!


Latest episode, aired 2 months ago.

The Commitment Determination
Episode 24
Air Date: May 7
Season: 8

The Commitment Determination

Sheldon pushes Leonard and Penny to choose a date for their wedding and deals with dramatic changes in his own relationship with Amy.

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The Maternal Combustion
Episode 23
Air Date: Apr 30
Season: 8

The Maternal Combustion

Personalities collide when Sheldon and Leonard's mothers finally meet. Meanwhile, Howard finally decides to "man up" and do his fair share o…

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The Graduation Transmission
Episode 22
Air Date: Apr 23
Season: 8

The Graduation Transmission

Wolowitz questions his engineering abilities when he and Sheldon can't get a toy drone to fly. Meanwhile, a cancelled flight nearly prevents…

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The Communication Deterioration
Episode 21
Air Date: Apr 16
Season: 8

The Communication Deterioration

When Raj is asked to create a message in case a NASA mission discovers alien life, the guys fight over what he should do. Also, Penny is tor…

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The Fortification Implementation
Episode 20
Air Date: Apr 9
Season: 8

The Fortification Implementation

When Sheldon and Amy build a blanket fort, they come to major crossroads in their relationship. Also, Wolowitz meets the half-brother he nev…

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