Memories of D-Day, Yalta, the Battle of the Atlantic

My 103-year old grandad, John, served in the Royal Navy in WWII and was at D-Day (on Omaha beach). He was also at Yalta, and has lots of stories from the Battle of the Atlantic.

He never really talked about his experiences during the war until recently. We've tried contacting the BBC ahead of the 80th anniversary next year. We've also tried to contact Imperial War Museum, but no one seems particularly interested.