Beginning Sunday, North Texans will have the rare chance to view one of the largest and most comprehensive artistic retrospectives ever seen in the United States as the Dallas Museum of Art opens “J. M. W. Turner.” We’ll discuss the exhibit and the artist this evening with Dorothy Kosinski, Senior Curator of Painting and Sculpture and The Barbara Thomas Lemmon Curator of European Art at the DMA, and Ian Warrell, Curator of Eighteenth- and Nineteenth-Century Art at the Tate Britain.