Watch The Big Bang Theory Online

A comedy series about 4 young scientists who know all about the world of physics, and 1 girl, who gives the physics world a real spin. Leonard Hofstadter is a smart guy who tries his best to complete his research and become famous for his work while also attempting to be the most socially-interacting guy in their friend group. Stars Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Sara Gilbert, Melissa Rauch and Mayim Bialik.

Premiere Date: Sep/24/2007

Genre: Comedy

A D

Most Recent Episodes

The Big Bang Theory season 11 episode 23

Season 11, Episode 23: The Sibling Realignment

When Sheldon learns that his mother won't attend his wedding unless he invites his brother, Georgie, he and Leonard travel to Texas to end a family feud. Also, the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali wit...

Air Date: May 03, 2018

The Big Bang Theory season 11 episode 24

Season 11, Episode 24: The Bow Tie Asymmetry

When Amy's parents and Sheldon's family arrive, everybody is focused to make sure all goes according to plan—everyone except the bride and groom....

Air Date: May 10, 2018

Series Promo / Trailer

 

The Big Bang Theory Casts

Johnny Galecki

Johnny Galecki

Leonard Leakey Hofstadter

Jim Parsons

 Jim Parsons

Sheldon Lee Cooper

Simon Helberg

 Simon Helberg

Howard Joel Wolowitz

Kunal Nayyar

 Kunal Nayyar

Rajesh Ramayan Koothrappali

Kaley Cuoco

 Kaley Cuoco

Penny

Melissa Rauch

 Melissa Rauch

Bernadette Marianne Rostenkowski

Mayim Bialik

 Mayim Bialik

Amy Farrah Fowler

Kevin Sussman

 Kevin Sussman

Stuart Bloom

Laura Spencer

 Laura Spencer

Emily Sweeney

Sara Gilbert

 Sara Gilbert

Leslie Winkle