I greatly enjoyed this programme - and I thought Jacobi's responses were appropriate, he was interested in that line, made it clear that there was some family knowledge right from the start, and it went on. He's a capable actor, but was merely reacting to information presented, and it was far enough from our time not, thank goodness, to provide a need for emotional teary reactions.
Perhaps a clue to where "the money" went may have been in the references to Chancery - "Bleak House" by Charles Dickens was the first I ever read on this, and when researching my main line I came upon some reference to Chancery, and it seems as if that could cause money to be tied up or vanish for ages, at the least.
It may have been nice to find out how the family fared, obviously they - or at least some of the family - went to Derbyshire because of the Ducal patronage, in later years, but it's only an hour in length - and can't cover everything. It was interesting, showed that "real" researchers had put in the legwork, and although I've not the slightest Huguenot ancestry, so it was all new to me, I felt I learned quite a bit.
This is far more in the spirit of WDYTYA?, and this series seems to have improved from a poor start. I do hope it continues with this sort of longer range hunt.