P432ORACLE 432 Mon17 Feb C4 1715:01        Monday, February 17, 10.00pm The third film in this series exploring the limits of human endurance deals with survival at sea. The sea has one thing in common with the desert - there is nothing to drink. The Robertson family describe their 37-day ordeal at sea after whales sunk their yacht and Kenneth Cooke recalls the moment when his ship was torpedoed in World War II. Frontlines previews this programme on page 442.  Mini Magazines Index 440 