Who Do You Think You Are returns August 13

If you happened to miss any of the episodes of the NBC series Who Do You Think You Are last spring - or if you just can't get enough of anything about genealogy, repeat episodes begin airing this evening, August 13, on NBC. Check local listings for times in your area.

Tonight's episode features Lisa Kudrow's search for a missing relative, long thought to be dead and a visit to the location where one of her ancestors became a victim of the holocaust. It's an extremely moving episode.

You can view full episodes and highlights at NBC.com.