1. Julie Chen

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. 8 March 2015. 42 min

Television personality Julie Chen uncovers a dramatic tale when she sets out for rural China to learn more about her maternal grandfather, who died long before she was born.

2. Josh Groban

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. 15 March 2015. 42 min

Singer Josh Groban traces his ancestry to Germany and discovers a relative who was a deacon, music teacher and well-known astronomer.

3. Angie Harmon

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. 22 March 2015. 42 min

Actress Angie Harmon discovers an ancestor who gave up his freedom to come to America and fought for independence at a pivotal point in history.

4. Sean Hayes

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. 29 March 2015. 42 min

Actor/Producer Sean Hayes searches for the cause of his estranged father's troubled past and uncovers a shocking trail of tragedy and crime that reaches back generations.

5. Tony Goldwyn

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. 5 April 2015. 42 min

Actor Tony Goldwyn researches his maternal ancestry and discovers a heritage of political activism along with a couple who proudly fought for abolition, women's rights and westward expansion.

6. America Ferrera

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. 12 April 2015. 42 min

America Ferrera learns about her great-grandfather's pivotal role in Honduran history, and seeks a connection to the father she hardly knew.

7. Bill Paxton

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. 19 April 2015. 42 min

Actor Bill Paxton searches his paternal ancestry and uncovers a war hero from a historic battle who shaped politics in the past.

8. Melissa Etheridge

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. 26 April 2015. 42 min

Music artist Melissa Etheridge researches her French roots, discovering a scandalous lawsuit and a relationship entangled with tragedy.