'The Big Bang Theory' Bachelor Party Debacle

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With all their intelligence, the nerds of The Big Bang Theory miserably fail to give a decent bachelor party for Howard (played by Simon Helberg) before his pending nuptials.

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Highlights of the boys' night out included a roast -- which Sheldon (played by Jim Parsons) eloquently defined as preparing "a series of disrespectful jokes, which generate humor at Howard's expense" -- and a heartfelt, albeit revealing, speech by best friend Raj (played by Kunal Nayyar).

Watch The Big Bang Theory Thursday at 8/7c on CBS to find out what happens when Howard's fiancee, Bernadette (played by Melissa Rauch), finds out about his past trysts spilled during Raj's speech.