I forgot about this on Weds and only got round to watching it yesterday afternoon on Iplayer... I do like the way these episodes are focusing on one or two relatives now and not going back generations. It shows that you can build up quite a detailed picture from various available resources (service records, war diaries, published memoirs etc) to get an insight into our ancestor's wartime experiences
It would be lovely, however, to have a trip to the WW1 battlefields with an expert on hand to give you a detailed description of battles etc, with all the necessary maps, documents and books... but sadly I can't see that happening for me!!