The Big Bang Theory Season 12 Episode 6 The Imitation Perturbation 2018
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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.
- Released: 2018-10-25
- Runtime: 22 minutes
- Genre: Comedy
- Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar
- Director: Brian W. Armstrong, Rick Puccio, John DeChene, Jamie Hitchcock, Adam Faberman
