Not sure why people need too complain. If your remotely interested then please go and read a proper book on the subject and teach yourself. If it gets a few kids/adults interested enough to educate themselves then great.
As for electricity generation, a little research shows that there are many many many better ways of doing it and these will occur in around 50 years+ when they are needed but it will NOT be in Britain. The know how is already there and when it becomes viable (ie costs) then it will be adopted. But for now Gas is the 21st century that oil was to the 20th. It's all about money and good education, it's that simple.
BIB I think you've a very good point there.
Far too little seems to be taught in schools these days, about our industrial heritage.
It's as if the educators are embarrassed about it, and I'd entirely agree with with you, were this programmed for around tea-time, but not at naffin' 9.00pm......when the age group for which it seemed to be mostly pitched, should all be in bed....