A new PBS show called A Little Bit of Brooklyn, that presents the borough's cultural nuggets, premieres today on WLIW. Hosted by Cobble Hill foodie Terry Corraro, the first episode features the Gubernats, a Polish family from Greenpoint, who keep their cultural traditions alive each Easter by carving a lamb out of butter, baking a lamb-shaped cake, making intricate paintings on eggs with wax, and cooking up a fine feast of white borscht. Greenpoint is......