Tonight UK. TV. Channel 5. 7.30pm - 8.00pm Escape from Dunkirk Historian Saul David continues his series on amazing escapes throughout history by examining the Allied evacuation of 340,000 troops from the Dunkirk beaches in 1940. Trapped on three sides by an advancing German army and facing certain defeat, the soldiers were rescued by an armada of 643 navy and civilian vessels which were at the mercy of German bombers Not sure if this is a repeat but it might be worth watching.