"The Convergence Convergence"

On The Big Bang Theory Season 9 Episode 24, it's chaos when Leonard's recently divorced parents and Sheldon's devoutly religious mother come to visit.

  • 4.2 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Line Substitution Solution"

On The Big Bang Theory Season 9 Episode 23, Penny struggles to make a connection with Leonard's mother while Sheldon hires Stuart to spend the day with Amy.

  • 4.0 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Fermentation Bifurcation"

On The Big Bang Theory Season 9 Episode 22, the gang runs into Penny's ex-boyfriend at a wine tasting event while Sheldon stays behind with pregnant Bernadette.

  • 4.0 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Viewing Party Combustion"

On The Big Bang Theory Season 9 Episode 21, an argument between Leonard and Sheldon becomes a heated fight during a get-together with friends taking sides.

  • 4.2 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Big Bear Precipitation"

On The Big Bang Theory Season 9 Episode 20, Raj goes overboard with the pregnancy presents while Sheldon reveals a secret about Leonard on a trip to the cabin.

  • 4.0 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Solder Excursion Diversion"

On The Big Bang Theory Season 9 Episode 19, Koothrappali sells out Leonard and Wolowitz when they lie to their wives so they can attend a screening of a movie.

  • 4.0 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Application Deterioration"

On The Big Bang Theory Season 9 Episode 18, Howard has doubts about a legal partnership with Leonard and Sheldon concerning the infinite persistence gyroscope.

  • 3.8 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Celebration Experimentation"

On The Big Bang Theory Season 9 Episode 17, Sheldon gets a surprise guest when the gang celebrate his birthday. Adam West guest stars in this episode.

  • 4.0 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Positive Negative Reaction"

On The Big Bang Theory Season 9 Episode 16, Wolowitz freaks out when Bernadette announces she's pregnant and the gang celebratew with karaoke.

  • 4.7 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5
"The Valentino Submergence"

On The Big Bang Theory Season 9 Episode 15, Howard and Bernadette find a surprise in their hot tub, while Sheldon and Amy host a Valenine's Day show.

  • 4.0 / 5.0
  • 1
  • 2
  • 3
  • 4
  • 5

TBBT Quotes

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.

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.