HORRORS of the Holocaust

Sir Sam Mendes and Sir Simon Schama mark the liberation of the Nazi death camps in two distressing documentaries

- HANNAH DAVIES

WORDS: , REBECCA MAHONE

NEW FACTUAL

What They Found Monday, 10pm (times vary), BBC2

For 80 years, harrowing footage of Nazi concentration camp BergenBelsen has been held in the archives of London's Imperial War Museum.

It was shot by two members of the British Army's Film and Photographic Unit as they accompanied the troops liberating the camp at the end of World War Two.