04/01/2012 10:20 am ET Updated Apr 02, 2012

Henry Louis Gates Jr. Helps Barbara Walters Uncover Her Past On TV Show 'Finding Your Roots' (VIDEO)

Renowned Harvard professor Henry Louis Gates Jr. has helped a number of celebrities discover integral aspects of their family origins, now he's taking on tracking down the family history of media legend Barbara Walters.

In an episode on his PBS series "Finding Your Roots with Henry Louis Gates Jr.," Gates uncovers the ancestry of both Walters and social activist and educator Geoffrey Canada. Prior to their appearance on the show, both Walters and Canada had been unable to access information about their families because of name changes in the past.

"Finding Your Roots" is the fourth installment of Gates' franchise, the first three drew a combined 25 million viewers, The Washington Post reports.

Walters and Canada are among a star-studded group of individuals looking to dig into their genealogy, including Robert Downey Jr., Samuel L. Jackson, Condoleezza Rice and Corey Booker.

Find out what the two discover Sunday night at 9 p.m. on PBS.