"The 2003 Approximation"

On The Big Bang Theory Season 9 Episode 4, with his living arrangements about to change, Sheldon reverts to his 2003 self, before he met Leonard or Penny.

  • 4.5 / 5.0
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"The Bachelor Party Corrosion"

On The Big Bang Theory Season 9 Episode 3, the girls force Penny to tell her family that she eloped while the boys are put to the test by a flat tire.

  • 3.5 / 5.0
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"The Separation Oscillation"

On The Big Bang Theory Season 9 Episode 2, Sheldon films a special episode of "Fun With Flags" after his breakup with Amy, and Leonard tries to ease Penny's mind.

  • 3.5 / 5.0
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"The Matrimonial Momentum"

On The Big Bang Theory Season 9 Episode 1, Penny struggles with Leonard's confession, and Sheldon doesn't know how to act after Amy pushes pause on their relationship.

  • 4.0 / 5.0
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"The Commitment Determination"

On The Big Bang Theory Season 8 Episode 24 Sheldon has to deal with serious changes in his own relationship as he pushes Leonard and Penny to set a date.

  • 4.5 / 5.0
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"The Maternal Combustion"

On The Big Bang Theory Season 8 Episode 23, Christine Baranski and Laurie Metcalf guest star as Leonard and Sheldon's mothers in "The Maternal Combustion"

  • 4.3 / 5.0
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"The Graduation Transmission"

On The Big Bang Theory Season 8 Episode 22, it's "The Graduation Transmission" has angry dads, sexy grads and the one suggestions that geniuses never want to hear.

  • 4.5 / 5.0
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"The Communication Deterioration"

On The Big Bang Theory Season 8 Episode 21, when Raj is asked by NASA to craft a message for the extraterrestrials the guys battle over what it should be.

  • 4.2 / 5.0
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"The Fortification Implementation"

On The Big Bang Theory Season 8 Episode 20, Sheldon and Amy come to a serious crossroads in their relationship when they build a blanket fort together.

  • 4.0 / 5.0
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"The Skywalker Incursion"

On The Big Bang Theory Season 8 Episode 19, Raj and Amy offer to settle an argument for Howard and Bernadette with ping pong, and Leonard and Sheldon take a road trip.

  • 4.2 / 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.

Penny, there's only one cookie with something in the middle that solves life's problems, and that's an Oreo. Or a Nutter Butter, if you're in a pinch.

Sheldon