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The Big Bang Theory season 9
Season of television series
The Big Bang Theory season 9
The ninth season of the American television sitcom The Big Bang Theory aired on CBS from September 21, 2015 to May 12, 2016. The series returned to its regular Thursday night time slot on November 5, 2015 after Thursday Night Football on CBS ended. Laura Spencer was promoted to the main cast during this season after being a recurring cast member for two seasons.
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