I felt a bit sorry for one contestant that only managed to get 3 points on his specialist subject, the books of Bill Bryson. He picked up a bit on the general knowledge but still lost in the end.
Interesting (to me) that Bryson said life was better for people in this country in (I'm guessing) the early 70s. He is quite a liberal sort, after all, isn't he.
It's a good idea to narrow the field a bit. Bill Bryson has written so many books, unless the chap had read them inside and out I inumerable times he didn't have a lot of chance, added to nerves. The may have been better to just study say the books on USA or UK, if allowed to cut it down that far.
I'm afraid im a it of a miserable old harrumpher when it comes to mastermind. I'm not sure if Ruston is better now than it was in the 70s (well I am, but we'll let that pass) Mastermind seems to have dumbed down though from that time. An irritation for me is the way it's been 'speeded up'. Soon they probably won't even bother inviting contestants out of their seats :-)