"The Leftover Thermalization"

On The Big Bang Theory Season 8 Episode 18, the gang has a final family dinner in Mrs. Wolowitz's honor and Leonard is upset when he fails to get credit for a paper he cowrote with Sheldon.

  • 4.7 / 5.0
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"The Colonization Application"

On The Big Bang Theory Season 8 Episode 17, Amy realizes that Sheldon has applied for a one-way mission to Mars and Leonard shocks Penny with a special purchase.

  • 4.6 / 5.0
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"The Intimacy Acceleration"

On The Big Bang Theory Season 8 Episode 16, Sheldon and Penny try an experiment designed to make participants fall in love while the rest of the gang tries to escape a zombie.

  • 4.3 / 5.0
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"The Comic Book Store Regeneration"

On The Big Bang Theory Season 8 Episode 15, Raj and Leonard run into a restaurant customer who looks a lot like actor Nathan Fillion while Stuart reopens his comic book store.

  • 4.5 / 5.0
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"The Troll Manifestation"

On The Big Bang Theory Season 8 Episode 14, Leonard and Sheldon must take on an online bully when they co-publish a paper and the girls remember embarassing moments.

  • 4.8 / 5.0
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"The Anxiety Optimization"

On The Big Bang Theory Season 8 Episode 13, Sheldon asks all of his friends to challenge him in order to help him make a scientific breakgthrough.

  • 4.6 / 5.0
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"The Space Probe Disintegration"

On The Big Bang Theory Season 8 Episode 12, Wolowitz tries to help distract Raj as he awaits data from his space probe while Sheldon and Leonard go dress shopping with Penny and Amy.

  • 5.0 / 5.0
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"The Clean Room Infiltration"

On The Big Bang Theory Season 8 Episode 11, a a Scrooge-like Sheldon buys Amy the worst possible gift while Leonard and Howard scramble to remove a pigeon that flew into the clean room.

  • 4.6 / 5.0
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"The Champagne Reflection"

On The Big Bang Theory Season 8 Episode 10, Sheldon ends up giving a tearful goodby to "Fun with Flags"

  • 4.4 / 5.0
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"The Septum Deviation"

Sheldon ends up needing sympathy when Leonard has minor surgery on his nose on The Big Bang Theory Season 8 Episode 9.

  • 4.4 / 5.0
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TBBT Quotes

Penny: What actor holds the record for being named People magazine's Sexiest Man Alive?
Sheldon: William Shatner!
Leonard: I don't think it's Shatner.
Sheldon: Then it's got to be Patrick Stewart

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.