On the whole I found it an interesting look at 1066, I was a bit surprised they spoke about the battlefield as being where it is as recent theories suggest it might have actually been somewhere else , but the most irritating thing about it was the casting of a black actor as one of Williams closest confidants and later as an envoy sent to parley with Harold.
I understand from other reviews that this historical figure was definitely white and the program makers must have knowingly changed his ethnicity to make the program more inclusive to black people.
Some will say what is the harm of this? - firstly Its highly patronising to black people, there are plenty of factual stories about black peoples contributing to the history of Great Britain without inventing things secondly this is a history series and history should always be rooted in fact , you can't change bits because it suits your agenda no matter how well intentioned your motives, because if an obvious fact like this can be changed then what other facts are changed to fit in with the history tellers political biases - it just undermines the whole programme and turns it into fiction. One of the joys of true stories is that these things really happened, normal people really did these things, when the BBC fiddles with history like this it just ruins it.