Agree wholeheartedly with Pip above — it is just as easy to be accurate with a bit of trouble as not. Shall never forget my disgust at the opening of the famous itv Brideshead Revisited in late 80s, where Captain Ryder said 'Good morning, Sergeant-Major' to a soldier wearing the insignia of a Colour-Sgt [a lower rank]. With the millions they were spending on the series, and with so many episodes with an Army setting, wouldn't you have thought they could have paid a competent military adviser to avoid irritating those who knew better? I have spelled out on another thread the reasons for this error ~ but confusion as to what is correct doesn't improve matters.