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.

Henry Louis Gates, Jr. shares the family histories of director Alejandro G. Iñárritu, iconoclastic performance artist Marina Abramović and painter Kehinde Wiley. These visionary artists find their identities challenged—and affirmed.