I just want to say this documentary is not only Well-Conceived, but also Well-Delivered..... I know, I know, but puns are fun though!
The honest truth is I enjoyed this so much. And it is very interesting sociologically. This show plays very similarly in tone and speed of discovery as another show that I enjoy, "Finding Your Roots" on PBS. Of course the people discovering their genetic family tree are famous people.
So I think it stands as a compliment to Filling in the Blanks" (which if you think about it is a really good pun as well!) -that it is just as well written, directed, played and produced as a PBS broadcast show. In my honest opinion that is. I really just believe the way these ladies and gentlemen handled these secrets is tremendous. Not only the children but the parents as well. Also, without spoiling it, the ending is a BRILLIANT wrap to the whole tale.