After witnessing the current role of DNA testing and analysis in the genealogical work of Dr Gates and his enormously talented and experienced team, I suddenly realized that I might be able to determine my own paternity mystery using some of the same methods. Maybe not as wide and deep, but it would be nice to learn my biological surname, at the very least, and hopefully the name of my biological father. Since I do not have ANY clues, DNA is a start. Thus, I am a little (maybe a lot) indebted to this series, for providing some hope. This series is, among the many knock-offs, a cut above, because of the rich and thorough historical context Gates provides to each of his guests/clients and the audience. It is so fascinating. I was so moved to see neurosurgeon, and CNN medical correspondent Sanjay Gupta so deeply touched, when he learned his ancestors deep Indian roots via centuries old scrolls maintained by holy men in India-- It is thrilling to watch.