“The Big Bang Theory” celebrates 200th episode (and Sheldon’s birthday) tonight

The Big Bang Theory 200th Episode

The Big Bang Theory 200th Episode

In the The Big Bang Theory‘s 200th episode “The Celebration Experimentation,” the gang throws a birthday party for Sheldon (Jim Parsons), surprising him with a special guest: 1960s Batman star Adam West. Recurring guest stars Christine Baranski, John Ross Bowie, Sara Gilbert and Wil Wheaton also return. “The Celebration Experimentation” premieres on CBS Thursday, Feb. 25, at 8pm ET/PT.

Photo: Credit: Monty Brinton/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

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