I must admit that I missed some of the second half of this one, because the repetition was driving me mad again, so I drifted off to do something else. So, if there were really good bits, unfortunately, I didn't see them. My overwhelming feeling at the beginning, though, was that they told us too much at the start so my reaction was, Oh, is that it?
This might be very difficult for the prgrammers to do, but it struck me that it would be much better if, instead of introducing everybody all at once, they did it piece by piece so that, for instance, you would meet Bloke A, and learn about his ancestor and find out about him first and what he did in 'the dramatic incident'. Then you could start guessing about what the connection might be when they introduce Woman B, and talk about her ancestor, and so on. Just a thought.
My other thought is that they could chop the whole thing down to half an hour!