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‘The Big Bang Theory’ star Jim Parsons on why he’s ‘grateful’ success didn’t come until his 30s


Jim Parsons, known to many as theoretical physicist Sheldon Cooper on “The Big Bang Theory,” has spent nearly his whole life acting. Despite his rise to fame during the decade-long comedy series, Parsons, 43, tells Sunday TODAY’s Willie Geist why he’s glad his big success came in his 30s.