TLC REVEALS CELEBRITY CONTRIBUTORS FOR NEW SEASON OF "WHO DO YOU THINK YOU ARE?"

All-new season set to premiere July 23

Last summer's season of WHO DO YOU THINK YOU ARE? led some of the world's most famous celebrities to make remarkable discoveries - from finding they were descended from European royalty to learning that their ancestors were involved in wars that changed the course of America. Throughout these journeys, they ultimately had a chance to make modern connections to the people in their lineage that were a part of history.

The Emmy-nominated series is back on TLC this summer with six all-new episodes and a brand new list of contributors. Executive Produced by Lisa Kudrow and Dan Bucatinsky, WHO DO YOU THINK YOU ARE? continues to delve into the personal family histories of some of the most public names. The season premieres Wednesday, July 23 at 9/8c.

This year's line-up of participants who will embark on this one-of-a-kind experience includes:

Valerie Bertinelli
Jesse Tyler Ferguson
Lauren Graham
Kelsey Grammer
Rachel McAdams and her sister, Kayleen McAdams
Cynthia Nixon

Additionally, TLC has acquired ten episodes from NBC's previous seasons of the series, which will air in conjunction with this year's new premieres on Wednesday nights. These episodes will feature the family histories of Matthew Broderick, Lisa Kudrow, Rob Lowe, Reba McEntire, Tim McGraw, Gwyneth Paltrow, Sarah Jessica Parker, Brooke Shields, Vanessa Williams and Rita Wilson.

Ancestry.com, the world's largest online family history resource, is teaming up again with TLC as a sponsor of the upcoming season. As part of the show sponsorship, Ancestry.com provides exhaustive family history research on each of the featured celebrities, which is used to build out the story of each episode.

Last summer's season of TLC's WHO DO YOU THINK YOU ARE? averaged 1.8M P2+ viewers. The series is produced for TLC by Shed Media US and Is or Isn't Entertainment. The series is based on an original format created by Wall to Wall Media and Alex Graham.

About TLC

TLC is a global brand that celebrates extraordinary people and relatable life moments through innovative nonfiction programming. A top 10 cable network in key female demos, TLC has built successful consumer brands around series including Cake Boss, and has transformed Fridays into "BrideDay" with a lineup of wedding-themed programming anchored by the Say Yes To The Dress franchise. In 2013, TLC had 32 series averaging 1 million P2+ viewers or more, including seven series that averaged 2 million P2+ viewers or more, the most ever in a year: Here Comes Honey Boo Boo, Sister Wives, Long Island Medium, The Little Couple, Who Do You Think You Are?, Breaking Amish: Brave New World, and Breaking Amish: LA.

TLC is available in nearly 99 million homes in the US and 329 million households in 167 markets internationally. A destination online, TLC.com offers in-depth fan sites, exclusive video content, and original editorial covering style, home, food, and more. Fans can also interact with TLC via On Demand services, on mobile platforms, and through social media such as Facebook or @TLC on Twitter. TLC is part of Discovery Communications (NASDAQ: DISCA,DISCB, DISCK), the world's number one nonfiction media company reaching more than two billion cumulative subscribers in 224 countries and territories.