Chef Sang Yoon prepares a dish at the Top Chef Masters Season 5 Premiere Tasting Event. The rise of competition cooking shows has quickly overtaken the traditional, how-to style of cooking television. Evan Agostini/Chase Sapphire Preferred/AP Images hide caption

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According to journalist Allen Salkin, Emeril Lagasse initially opposed bringing Rachael Ray, pictured here in 2007, onto the Food Network – and, at first, Ray agreed with him. "You have this all wrong," she told executives, "I'm beer in a bottle; you guys are champagne." Scott Gries/Getty Images hide caption

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The first prehistoric chef who looked out at a field of grass in Africa and said, "dinner!" may have helped our ancestors use new resources in new locations. Roberto Schmidt/AFP/Getty Images hide caption

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Food science guy Alton Brown says the last thing you want to see is flames touching food on the grill. iStockphoto.com hide caption

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