This is worth checking out on the BBC web site.
The story of the Great War told from a unique new aerial perspective. Featuring two remarkable historical finds, including a piece of archive footage filmed from an airship in summer 1919, capturing the trenches and battlefields in a way that's rarely been seen before. And aerial photographs taken by First World War pilots - developed for the first time in over ninety years - show not only the devastation inflicted during the fighting, but also quirks and human stories visible only from above. Presented by Fergal Keane. Link