Sheldon visits his mother while he's in Houston. He's forced to accept new circumstances.
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Raj's murder mystery game isn't quite the killer party he's hoped for on The Big Bang Theory.
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Raj hands Howard something during the game night with Sheldon and Leonard.
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Howard smiles during a visit to see Sheldon at his University office.
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Sheldon's listens to Howard while at work behind his computer.
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Penny surprises both Leonard and Sheldon with her comment.
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Penny and Leonard chat in front of the still-broken elevator.
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Penny talks to Leonard about an embarrassing movie role she's offered.
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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.

Leonard: Hi. I'm Leonard. You are beautiful. You pop, sparkle and buzz electric. I'm going to pick you up at eight, show you a night you will never forget.
Raj: Where are we going?