thanksgiving or simply say fat chance? please withhold your judgment until you ve seen rita braver s cover story. reporter: for years we ve been hearing that fat is. well, fattening. excessive consumption of saturated fat is a bad habit to be in. reporter: but now fat is back in fashion. at least in some quarters. you put a little bit of duck fat on that cally flower, i can sell 25 pounds of calle flower tonight. reporter: later on our sunday morning cover story we ll chew the fat. world but the sandwich has been around for a long time. invented by this man s great great great great great great grandfather, the fourth earl of sandwich. this is the 11th earl. i think he was just like you or i. he wanted something to be eaten easily with one hand. reporter: cashing in on the family name. finally, something to chew on later on sunday morning. osgood: many a satisfied diner has explained it. so in a very different way are viewers of a brand new movie with the lead