If you did not see this past season's episodes of the U.S. version of Who Do You Think You Are? or perhaps missed an episode or two, you can now watch reruns on your computer. NBC.com has placed several past episodes online.
All the episodes are available now at http://www.nbc.com/who-do-you-think-you-are/. For a more direct route, go to http://www.nbc.com/who-do-you-think-you-are/video/categories/season-1/1197290/