Having viewed the latest iteration of Who Do You Think You Are, I must say that I'm quite surprised! The American edition, produced by Lisa Kudrow and featuring Sarah Jessica Parker as the star of the first episode was an enjoyable piece of television. It remained true to the formula as originally set out by the UK production, despite a sometimes overt push for drama where it only existed in a mild form. Yes, it did have the obligatory American styled 'Entertainment Tonight' angle, pumping up the story, complete with dramatic music, but in most cases it didn't interfere with the basic premise of the show. It allowed for the story to unfold, and with help of the program's focal point (Parker), who offered her voice to the bulk of the programs narration (a welcome change to previous version's relying upon face to camera interviews).
I didn't learn much about American genealogy research, but the show did offer some excellent insights into events such as the Salem Witch Trials, and the California Gold Rush (which I'm interested in for a branch of my mother's genealogy that ventured there from Australia in the early 1850's).
The American WDYTYA is a worth addition to the others so far developed. It may not be a great research help, but it is highly enjoyable.