The Big Bang Theory Season 8 Episode 21 The Communication Deterioration ( Air Date 2015-04-16 ) Genre Comedy category. Overview "When Raj is asked to create a message in case a NASA mission discovers alien life, the guys fight over what he should do. Also, Penny is torn between auditioning for a movie or keeping her successful pharmaceutical sales job.".
The Big Bang Theory Season 8 Episode 21 The Communication Deterioration
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- Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, Mayim Bialik
- Director: Brian W. Armstrong, Rick Puccio, John DeChene, Jamie Hitchcock, Adam Faberman, Richard Price, Shannon Timberlake, Anthony Del Broccolo, Jeremy Howe, Tara Hernandez, Andy Gordon, Alexandra Barbone, Tara Treacy, Linda Cowan, Robinson Green, Peter Chakos, Sylvia Surdu, Justin D. Hetzel, Charlie Back, Ryan Berdan, David Goetsch, Eric Kaplan, Maria Ferrari, Faye Woods, Steve Holland, Todd Morris, Vikki McCarter, Kristy Cecil, Robinson Green, Steven Molaro
