I think this was shown on one of the subscription digital history channels in the UK but I don’t have pay tv so missed it. You can now watch most of the first episode on youtube.
I thought that they had got Roger Allam playing Oliver Cromwell, which would have been an inspired bit of casting, given that he has recently portrayed both Hitler and the evil Anglo-Irish landlord, Sir John Hamilton, in the Wind that Shakes the Barley. But I think it is just a bloke who looks a bit like him. Maybe they couldn’t afford Rog’s fee. Still, a starry cast of early modern historians on show: Ronald Hutton, Nicholas Canny and John Morrill.