The Big Bang Theory - Season 12 Episode 6 The Imitation Perturbation
When Howard dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Leonard is shocked that Penny doesn't remember their first kiss.
- Genre: Comedy
- Studio: CBS
- Keyword: geek, nerd, friends, scientist, sitcom
- Cast: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch
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