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Welcome to Watch The Big Bang Theory Online, the ultimate website for those who love to Watch The Big Bang Theory Online for free. Here you can stream all The Big Bang Theory episodes online without downloading any extra software on your computer. Watch The Big Bang Theory Online is a spam free organization that is dedicated to bringing you the latest episodes from The Big Bang Theory. We update our website on weekly basis, so if you missed the latest The Big Bang Theory episode on TV, make sure to check our website to follow the action. To start your navigation, use the season menu located on the left side of the website under the "Watch The Big Bang Theory Online Season Guide" section.

The Big Bang Theory's Latest Episode
S3E23: The Lunar Excitation
Air Date: May 24, 2010
Views: 7,778
Comments: 5
Rating: 3.13/5 (8)
While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.

Most Viewed Episodes

The Big Bang Theory Season 3 Episode 10
Views: 71,943 | Aired: Dec 7, 2009
The Big Bang Theory Season 3 Episode 21
Views: 8,262 | Aired: May 10, 2010
The Big Bang Theory Season 1 Episode 1
Views: 8,240 | Aired: Sep 24, 2007
The Big Bang Theory Season 3 Episode 23
Views: 7,778 | Aired: May 24, 2010
The Big Bang Theory Season 1 Episode 2
Views: 6,610 | Aired: Oct 1, 2007
The Big Bang Theory Season 3 Episode 22
Views: 6,306 | Aired: May 17, 2010
The Big Bang Theory Season 1 Episode 4
Views: 4,455 | Aired: Oct 15, 2007
The Big Bang Theory Season 1 Episode 5
Views: 4,317 | Aired: Oct 22, 2007

Top Rated Episodes

The Big Bang Theory Season 3 Episode 20
 | Aired: May 3, 2010
The Big Bang Theory Season 3 Episode 17
 | Aired: Mar 8, 2010
The Big Bang Theory Season 2 Episode 16
 | Aired: Mar 2, 2009
The Big Bang Theory Season 2 Episode 21
 | Aired: Apr 27, 2009
The Big Bang Theory Season 3 Episode 10
 | Aired: Dec 7, 2009
The Big Bang Theory Season 2 Episode 9
 | Aired: Nov 24, 2008
The Big Bang Theory Season 3 Episode 22
 | Aired: May 17, 2010
The Big Bang Theory Season 3 Episode 1
 | Aired: Sep 21, 2009

More Latest Released Episodes

S3E22: The Staircase Implementation
Air Date: May 17, 2010
Views: 6,306
Comments: 8
Rating: 4.00/5 (7)
Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.
S3E21: The Plimpton Stimulation
Air Date: May 10, 2010
Views: 8,262
Comments: 20
Rating: 3.50/5 (8)
Leonard and Sheldon compete for the attention of a famous female physicist.
S3E20: The Spaghetti Catalyst
Air Date: May 3, 2010
Views: 2,905
Comments: 9
Rating: 4.71/5 (7)
When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy
S3E19: The Wheaton Recurrence
Air Date: Apr 12, 2010
Views: 2,359
Comments: 3
Rating: 3.67/5 (3)
Leonard and Penny's relationship is on the line when they start fighting.
S3E18: The Pants Alternative
Air Date: Mar 22, 2010
Views: 2,579
Comments: 1
Rating: 3.75/5 (8)
Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
S3E17: The Precious Fragmentation
Air Date: Mar 8, 2010
Views: 2,732
Comments: 1
Rating: 4.43/5 (7)
When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.