Official website: http://to.pbs.org/2w7CdCo | #FindingYourRoots The fourth season of Finding Your Roots with Henry Louis Gates, Jr. premieres Tuesday, October 3 at 8/7c. Subscribe to the PBS channel: https://www.youtube.com/user/PBS/featured/ Enjoy full episodes of your favorite PBS programs at pbs.org/video. Like Finding Your Roots on Facebook: https://www.facebook.com/FindingYourRootsPBS Like PBS on Facebook: https://www.facebook.com/pbs/ Follow PBS on Twitter: https://twitter.com/PBS Follow PBS on Instagram: https://www.instagram.com/PBS Official website: http://www.pbs.org/ Get PBS merchandise: http://www.shoppbs.org/home/index.jsp The acclaimed series returns with Professor Gates exploring the mysteries, surprises and revelations hidden in the family trees of popular figures including Aziz Ansari, Scarlett Johansson, Ted Danson, Larry David, Ava DuVernay, Bryant Gumbel, Garrison Keillor, William H. Macy, Suzanne Malveaux, Ana Navarro, Amy Schumer, Mary Steenburgen, Christopher Walken and more.