Many a television newsman has had a signature phrase, whether it's a unique sign-off or a particular expression that viewers come to associate with him. Could Al Roker's be ..."man candy?" Yesterday, Roker, of NBC's Today Show fame, surveyed the sea of tight-T-shirted young men lined up on the Today Show Plaza for Cosmopolitan magazine's search for "The Most Eligible Bachelors in the United States" and proclaimed: "It's like a Whitman's Sampler of man candy." On Monday, "award-winning chef Marcus Samuelsson" appeared on the show to prepare an autumnal feast and inspired this exchange between Roker and Ann Curry: CURRY:...