Uncover family mysteries about two legends of hip hop, Sean Combs and LL Cool J, through the use of DNA technology, which reveals information that shakes their very foundations.

Henry Louis Gates, Jr. helps comedians Carol Burnett and Niecy Nash decode scandals hidden within their roots, exposing secrets that their ancestors concealed and celebrating the virtue of accepting one’s relatives—whoever they may be.

Actors LeVar Burton and Wes Studi, two men who grew up without their fathers, explore their family histories.

In this episode, we feature two African American politicians from different generations and opposite backgrounds. John Lewis grew up in a sharecropping family in rural Georgia, while Cory Booker was raised in an affluent, all-white New Jersey suburb. Although both men have devoted their lives to the betterment of African-American people, neither of them knows much about their own ancestors. In this episode, we introduce Booker to his white great-grandfather, a man he never knew, and move Lewis to tears over the extraordinary ambitions and accomplishments of his slave ancestors..

Samuel L. Jackson, Condoleezza Rice and Brown University President Ruth Simmons have each climbed to the pinnacle of their profession, yet each started life as a second class citizen in the Jim Crow south. In this episode we will use DNA to investigate family mysteries: where do they come from in Africa, and who are the white men in their family trees?

Guests: Gaby Hoffmann and Téa Leoni. Two guests whose lives have been shaped by family mysteries are introduced to biological ancestors they never knew they had thanks to genetic detective work.

Henry Louis Gates, Jr. helps actor Andy Samberg and author George R. R. Martin answer some family mysteries when DNA detective work uncovers new branches of their family trees. The DNA analysis upends family history and reveals new relatives.

Henry Louis Gates, Jr. shows journalists Christiane Amanpour, Ann Curry and Lisa Ling that the stories within their own family trees are every bit as compelling as the news stories they have been covering for the world.

Henry Louis Gates, Jr. delves deep into the roots of two African-American guests, actor S. Epatha Merkerson and athlete and television personality Michael Strahan. Both discover unexpected stories that challenge assumptions about black history.

The family stories of actor Ty Burrell, and radio host Joe Madison. Also a look at how a summer camp for children is using genetic genealogy to help young people better understand their burgeoning identities.

Uncover a history of tragedies and triumphs in the families of three of America’s funniest men–Jimmy Kimmel, Norman Lear and Bill Hader—as they learn how comedy truly has its place in all aspects of life.

Join Larry David and Bernie Sanders, who learn they have more in common than they thought.

Guests: Carly Simon, Christopher Walken, and more. In this episode, three guests each learn about a grandparent whose real identity and background had been a mystery to them. Along the way, two of them also discover that their close relatives were on the wrong side of history.

Guests: Bryant Gumbel, Tonya Lewis-Lee and Suzanne Malveaux. Three African-American guests delve deep into their family trees, discovering unexpected stories that challenge our assumptions about black history.

Guests: Questlove, Dr. Phil and Charlayne Hunter-Gault. Three guests of disparate backgrounds dig into their Southern roots, where slavery and its aftermath shaped families both black and white.

Guests: Kehinde Wiley, Julianne Moore, Bill Hader. Henry Louis Gates, Jr. explores the roots of actor Julianne Moore, comedian Bill Hader, and painter Kehinde Wiley, revealing how their ancestors’ military service left an indelible mark both on their families and on their country. (S03E06 was also titled "War Stories." Kehinde Wiley originally appeared in S05E09. Julianne Moore originally appeared in S03E06. Bill Hader originally appeared in S03E04.)

Guests: Gayle King, Jordan Peele, Issa Rae. Henry Louis Gates, Jr. explores the family secrets of journalist Gayle King, film director Jordan Peele, and comedian Issa Rae, introducing them to ancestors who raise profound questions about the shape and meaning of their family trees.

Guests: Pharrell Williams and Kasi Lemmons. Henry Louis Gates, Jr. helps musician Pharrell Williams and filmmaker Kasi Lemmons uncover extraordinarily rare first-person accounts of their enslaved ancestors.

Guests: John Lithgow and Maria Hinojosa. Henry Louis Gates, Jr. traces ancestors of actor John Lithgow and journalist Maria Hinojosa who thrived in North America long before the birth of the United States.

Henry Louis Gates, Jr. traces the roots of actors Brian Cox and Viola Davis, uncovering records from workhouses in Scotland and slave plantations in South Carolina that reveal individuals who battled to build a better life for their families.

A solution to a mystery that has haunted the Gates family for generations is revealed.

What's in a name? Well, a lot, at least when it comes to piecing together your family history. For former slaves, choosing a last name was one of their first acts of freedom. For Jewish immigrants, it was a way to fit in their new country. Whatever the reason for a name change, it can make the process of learning about one's ancestors difficult, if not impossible. In this episode, we unearth missing links in the family histories of media legend Barbara Walters and educational superstar Geoffrey Canada. Walters did not know her father's real last name. Canada did not know the name of his grandfather. Both of them had been unable to access their history... until now.

Learn how the ancestors of Maya Rudolph, Shonda Rhimes and Keenen Ivory Wayans struggled for freedom, and how each of these cultural trailblazers gain a new understanding of how they fit into this proud trajectory.

Patricia Arquette, Senator John McCain, and Julianne Moore explore their genealogical heritage with Henry Louis Gates, Jr.

Learn how Dustin Hoffman and Mia Farrow, who last shared the screen together in 1969, also share a history of tragic deaths in their families that played major roles in shaping future generations.