Agree with Ruskie - each series we hear the line about "ordinary people would be better..." but whilst I might find the story of mine fascinating ( and most certainly would really welcome a free trip to Canada, another to Ireland, time in the highlands of Scotland - oh, and I've heard of a really distant rellie in Jamaica ) I expect everyone else would be bored out of their bloomers by it!! And the series would rapidly cease.
It is fascinating when you find links with places your own ancestors were, jobs they did, even from time to time really distant brushes with their family trees - but we all like to see the difficult stuff - pre-censuses, found in dusty and restricted records, not the "easy" stuff we all can manage online, that so seems to gobsmack all the celebs who say things like " I always wanted to know what my Uncle Joe was doing when he was with the Xth Yorkshire Hussars in 19** in *****" - that information could be obtained relatively easily with a little effort and a small amount of cash.
Let's get back before the Second War, possibly even the first war, and see where the roots really lie. I was wondering where Hollywood's surname came from, actually, thinking of the many "Holy Wood"s.