Guy Fieri has been on Food Network since the 2006 premiere of his show, "Guy's Big Bite," and can now be seen hosting "Diners, Drive-Ins, and Dives," as well as has his own competition show, "Guy's Grocery Games." Though Fieri is seen having fun on "Guy's Grocery Game," he had his original competition pitch rejected, and as it turns out, he was just ahead of the trend.