Since his days at Bayside High, Diamond has embarked in a number of activities. He released the tutorial video "Dustin Diamond Teaches Chess" in 2001, appeared on "Celebrity Fit Club" in 2007 and wrote a tell-all book in 2009 called "Behind the Bell." He most recently appeared as a contestant on "Celebrity Big Brother." —XFINITY Entertainment Staff (Photo by Ben A. Pruchnie/Getty Images)
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