Who Do You Think You Are?

"Who Do You Think You Are?" premieres Friday, March 5 (8-9 p.m. ET) and gives viewers an up-close and personal look inside the family history of some of today's most beloved and iconic celebrities.

Among the celebrities featured are Matthew Broderick, Lisa Kudrow, Spike Lee, Sarah Jessica Parker, Susan Sarandon, Brooke Shields and Emmitt Smith.

Ancestry.com is NBC's official partner on the series. From executive producer Kudrow ("Friends," "The Comeback") - in conjunction with her production company Is or Isn't Entertainment and the U.K.'s Wall to Wall productions - "Who Do You Think You Are?" is an adaptation of the hit BBC television documentary series created and executive-produced by Alex Graham. [Press Release]