Billie Jean King, Derek Jeter and Rebecca Lobo learn about their family histories. King discovers that her grandmother was an orphan; Derek Jeter investigates his ancestors' lives as slaves; and Lobo finds out that an ancestor was forced to flee Spain because of his democratic ideals.

Chef Tom Colicchio learns the hardships his family endured in Northern Italy; chef Ming Tsai traces his roots back 2,000 years; chef Aarón Sánchez learns his Mexican roots include Spaniards, Africans and Native Americans.

Nas learns about his slave ancestors; Angela Bassett discovers that her family history includes an emancipation story; and Valerie Jarrett, a senior adviser to President Obama, learns about the free people of color in her family's past

Tony Kushner learns how the Holocaust impacted his ancestors; Carole King delves into the origins of her family name; and Alan Dershowitz discovers that an Hassidic synagogue started by his great-grandfather played a secret role in World War II.

Deepak Chopra, Sally Field and Sting’s ancestry demonstrates the extraordinary influence of the British Empire during the 18th and early 19th century.

Tina Fey, George Stephanopoulos and David Sedaris, three quintessential voices in American life, descend from ancestors that were part of the wave of Greek immigrants that flooded America’s shores in the early decades of the 20th century.

Secrets encoded in their genomes challenge these guests’ ideas about their families’ histories and their identities today. This episode features Jessica Alba, Anderson Cooper, Valerie Jarrett, Governor Deval Patrick and more.

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: Ted Danson, Mary Steenburgen and William H. Macy. Three mainstays of modern-day Hollywood discover family legacies that predate the United States itself.

Guests: Ta-Nehisi Coates, Ava DuVernay and Janet Mock. Three guests who have helped to redefine Black America in the last decade find their identities challenged as they learn about their family origins.

Guests: Scarlett Johansson, Paul Rudd and John Turturro. In this episode, three guests explore the tremendous challenges faced by their immigrant forebears.

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: Lupita Nyong’o, Carmelo Anthony and Ana Navarro. Three guests explore how their family trees were shaped by political turmoil and violence, discovering sometimes unexpected ancestry along the way.

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.

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: Amy Schumer and more. Guests who have found fame mining their family stories for comedy learn about ancestors who overcame immense suffering.

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. helps actors Felicity Huffman and Michael K. Williams discover a wealth of hidden family history. Both grew up knowing little about their biological fathers, and seeing their lost ancestry restored proves deeply empowering.

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. explores with Marisa Tomei, Sheryl Sandberg and Kal Penn the tremendous challenges faced by their immigrant forebears. From Italy, Russia and India to America, their histories show success could take generations to achieve.

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.

Henry Louis Gates, Jr. explores the diverse family histories of politicians Paul Ryan, Tulsi Gabbard and Marco Rubio. They each see a shared vision of the great American melting pot reflected in their ancestors’ stories.

Henry Louis Gates, Jr. shows comedians Seth Meyers, Tig Notaro and Sarah Silverman that their family trees are filled with people whose struggles laid the groundwork for their success. Gates also reveals to each one news of an unexpected DNA cousin.

Henry Louis Gates, Jr. explores the family stories of filmmaker Michael Moore and actors Laura Linney and Chloë Sevigny—three people whose distant ancestors overcame great hardships in ways that resonate with their lives today.