TV Diner, the local restaurant show hosted by Billy Costa, is throwing its popular Platinum Plate Gala on Saturday, November 15th, at the Herb Chambers Lexus Showroom in Sharon. The evening of tastes from Greater Boston area restaurants, including Tremont 647, Avila, Prezza, Taranta and more, benefits the Floating Hospital for Children at Tufts Medical Center (7–11 PM; $125 per person; 25 Providence Hwy., Sharon; get tickets).