I have just watched this and it is chilling.
I am not in the UK so didn't see it when it was on TV, but a relative has been nagging me to watch it and eventually he sent me a copy.
He is a very clever tech person who worked in silicone valley for around 10 years, now retired in his early 40s.
He really rates this programme because of its relevance to the Trump election.
If you haven't watched it I would urge you to do so asap.
It was originally shown on 6th Jan.