I agree - I thought it was rivetting!
I empathised with Kevin's discomfort in finding lots of wealth in his ancestry. Mine are nowhere near as wealthy or as historically notable as his, but I remember when I first found a 4x great grandfather who'd actually owned land and left a will and thinking he couldn't possibly be mine - I must have made a mistake somewhere along the line as I'm from true working class stock.

How I wish I could find an ancestor who's warranted a mention in Samuel Pepys diary!
This was by far and away the best of the series - it actually managed to do "what it says on the tin" and go back a few generations rather than give us 45 minutes of parental history with a little bit of genealogy tacked on for good measure. I think it's up there in the top 5 of the whole 6 series.
However, something is worrying me.

I've read articles in magazines (Radio Times etc) that this episode was made some time ago. Is this merely a throw back to how the programme used to be made, and the other 4 episodes in this series constitute the future of WDYTYA? I do hope not.
Just seen Madpants post - heartily agree (obviously!). Do you know for sure that it's a new production company? If so, I fear the worst.Jill