The last one is a current series on BBC One in England, drawing a decent audience as the ancestry of selected people are researched and explained. A London Times (UK) article about the show is here - and some of the article is about the potential for American TV. Julia Roberts is apparently one of the celebrities whose ancestry might be discovered.
The article notes that:
It is hoped that other stars would also be prepared to take part in the programme. However, questions remain over whether celebrities protective of their images, would open themselves to potentially shocking disclosures.
Alex Graham, head of Wall To Wall, the London independent production company that created the show, said: “It is very important the celebrities discover the information on camera. The emotion is always authentic. Celebrities do not have editorial control over the results of their search. They can ask us to remove scenes they feel are intrusive, but no one has so far.”
A second article on the Times web site is titled "Roots For All", and it is
here. The best part of this article is the following:
Databases, search engines and the internet have made it easier for amateurs to climb their family trees. Of course, taken to its logical conclusion, at the top they will find Adam and Eve. Or, according to their preference, a hairy, tailed quadruped, probably arboreal in its habits. Or a protoplasmal, primordial atomic globule. Pace neophiliac politicians, history is not irrelevant. Those who never look backward to their ancestors will not look forward to posterity.
I can hardly wait!