Sue Barker introduces coverage of the World Figure Skating Championships from Turin. Coming hot on the heels of a thrilling Winter Olympics, one of the stars of the Vancouver Games will be gracing the World Championships with her presence. South Korea's Kim Yu-Na scored a remarkable total of 228.56 points as she wowed the judges with a stunning display to claim gold in the ladies' singles. The 19-year-old's main competition will come from Japan's Mao Asada