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Host 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.
Dr. Gates, brings Felicity Huffman and Michael K. Williams their family histories.
Journalists Christiane Amanpour, Ann Curry and Lisa Ling learn their family histories.
Dr. Gates reveals the family history of Kal Penn, Sheryl Sandberg and Marisa Tomei.
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