Review | Who Do You Think You Are?

Credit: Chris Berkey/NBC

Airs Friday 2/4

Us Rating: ***1/2

Gwyneth Paltrow, Rosie O'Donnell, Tim McGraw and other celebs learn about their ancestors in season 2 of this genealogy hunt.

First subject: Vanessa Williams, who unearths a past that's both rich and inspiring. The Desperate Housewives star travels the country and enlists the help of experts and archivists to trace the life of two of her great-great- grandfathers. What unfolds is a tale flecked with Civil War heroism, political courage, interracial love and tragedy that's worthy of an epic miniseries. (NBC, 8 P.M.)