Sheldon watches an episode of Professor Proton's show.
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Penny talks to Sheldon before going to the funeral.
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Leonard consoles Sheldon after letting him know a hero of his died.
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The gang introduces Penny to Star Wars Day on May 4th.
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Sheldon and Penny go out for dinner together on "The Anything Can Happen Recurrence."
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Sheldon talks to Leonard wearing a robe in their kitchen.
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Is Sheldon sleeping with the Geology book? Nice robe!
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Sheldon has a Geology book. Why would he have that?
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The Big Bang Theory Season 7 Quotes

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

Mrs. Cooper: Shelly! I'm so glad you're here!
Sheldon: I saw you having naked sex.