It’s tricky to write anything much as I feel I will simply be repeating what I have said before. What is remarkable is how every episode builds on and develops what has gone before, in terms of plot, character development, relationships – every element that makes up drama. It really is remarkably unusual the extent to which this continues throughout every series, and every episode with never any feeling that what is happening or what we are learning is unlikely ridiculous, too overly dramatic. Not sure I have ever seen a series, certainly of this length, where that has been the case.