Yes indeed, Moffat used to be a TV producer so he knows how to popularise history for the masses. He's a passionate Borderer, a native of Kelso, and has written extensively about the Border Reivers etc.
I'll tell you what else is fascinating. Lots of us amateur genealogists have taken advantage of the new science of genetic genealogy to have our DNA tested and find out just who our early ancestors were, in terms of being Celts, Anglo-Saxons, Vikings, etc. People often like to think they're a Scot/Pict/Viking or what have you, but now there are scientific tests that can spell out your ultimate ancestry in terms of father's father's father ..., mother's mother's mother ... and so on, back thousands of years.
As a native of Fife brought up in the village where my father's family seem to have lived for ever, I wasn't surprised when my Y DNA 67-marker test showed I was a Pict. We didn't disappear, as historians have alleged - we're still here!
Harry