William Hanna worked at a British media company.
Daily Mail and General Trust plc manages a multinational portfolio of companies , with total revenues of almost # 2bn , that provide a diverse range of businesses and consumers with information , analysis , insight , news and entertainment . Global is a British media company formed in 2007 , which owns a large number of radio stations across the country . William Hanna . In 1937 , while working at Metro-Goldwyn-Mayer ( MGM ) , Hanna met Joseph Barbera .