"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
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"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
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"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
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"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
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"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
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"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
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"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
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"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
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"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
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"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
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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.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.