There are several Umberto's locations on Long Island, but none more famous than the one in New Hyde Park, where generations of pizza lovers have visited over the years. It's there where the pizza cooks began making a thinner Sicilian, one of them dubbing it "Grandma style." Did they really invent it? Listen to Part 1 of our Umberto's saga. We'll also preview the NYC Pizza Festival (Home Edition) coming up April 24th and 25th.