The Big Bang Theory

Series Summary
Mensa-fied best friends and roommates Leonard and Sheldon, physicists who work at the California Institute of Technology, may be able to tell everybody more than they want to know about quantum physics, but getting through most basic social situations, especially ones involving women, totally baffles them. How lucky, then, that babe-alicious waitress/aspiring actress Penny moves in next door. Frequently seen hanging out with Leonard and Sheldon are friends and fellow Caltech scientists Wolowitz and Koothrappali. Will worlds collide? Does Einstein theorize in the woods?

Air Dates: 2007 - Present

Genres: Sitcom

Network: CBS

  • Season 9, Ep. 24 : The Convergence ConvergenceMay 12, 2016

    watch now

    Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

  • Season 9, Ep. 23 : The Line Substitution SolutionMay 5, 2016

    watch now

    Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy; Penny has a difficult time connecting with Leonard's visiting mother.

  • Season 9, Ep. 22 : The Fermentation BifurcationApr 28, 2016

    watch now

    The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned.

  • Season 9, Ep. 21 : The Viewing Party CombustionApr 21, 2016

    watch now

    During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

  • Season 9, Ep. 20 : The Big Bear PrecipitationApr 7, 2016

    watch now

    Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

series photos

view all

ratings & reviews

view all
Critic Reviews( 3 )
See all critic reviews on
moviefone newsletter
Want more? Signup for our newsletter to get movie and TV show news, exclusive content, the latest trailers, giveaways and much more
By signing up I accept the Terms of Use and Privacy Policy

How do you watch stuff?


How else do you watch?

Select your online providers
  • Netflix
  • Itunes Store
  • Amazon Com
  • Hulu
  • Youtube
  • Redbox
  • Vudu
  • Cinemanow
  • Hbo
  • Showtime