Washington – The National Geographic Channels announced on April 15 several senior leadership changes at the company. Gary E. Knell, President and CEO of the National Geographic Society, and Peter Rice, Chairman and CEO of Fox Networks Group, on behalf of the Board of Directors of National Geographic Channels, made the announcements jointly.

Courteney Monroe, who has served as Chief Marketing Officer for National Geographic Channels’ domestic networks since joining the company in January 2012, has been named CEO, National Geographic Channels U.S., effective May 1. In her new role, Monroe will report to the Board of Directors of the National Geographic Channels.

David Hill, who currently serves as Senior Executive Vice President of 21st Century Fox and a member of the National Geographic Channels Board of Directors, will now add the title of Chairman of National Geographic Channels U.S., a role in which he will provide counsel to the executive and programming leadership team. Hill will remain a member of the NGC Board and also continue to play a leadership role in the production of American Idol.

David Lyle, who has served as CEO of National Geographic Channels since 2011, will step down, handing over to Monroe and Hill.

As CEO, Monroe will be responsible for all operations of the domestic National Geographic Channels, which are owned by a partnership between Fox Networks Group and the National Geographic Society. The U.S. channels include National Geographic Channel, Nat Geo WILD and Nat Geo MUNDO.

“Courteney is a truly remarkable executive, with a proven track record of energising programming brands — both here at National Geographic Channels and during her time at HBO,” Rice and Knell said in a joint statement. “She is also a proven leader, who has a clear vision of the television landscape, and we are very lucky to have her overseeing our domestic channels.”

“During my tenure as CMO at the National Geographic Channels, I have seen the power of this brand, and am excited by the opportunity to grow these networks, both creatively and commercially, for our partners and our advertisers,” said Monroe. “Being part of the team that laid such a strong foundation over the past few years has given me invaluable insight into what it is going to take to get us to the next level.”

In her previous role as Chief Marketing Officer, Monroe led the Channels’ brand and all aspects of marketing — including brand strategy, creative, consumer marketing, digital platforms, social media, partnership marketing and ad sales marketing. In October 2013, she also added to her oversight communications, public affairs, education outreach and events. As CMO, she oversaw the campaigns that launched the network’s top series Brain Games and Wicked Tuna, and developed the strategic consumer campaigns that broke records on the scripted front with Killing Lincoln and Killing Kennedy.

Prior to joining National Geographic Channels, she was executive vice president, Consumer Marketing and Digital Platforms, for Home Box Office, responsible for the marketing of the HBO and Cinemax brands and their programming across all platforms. She led the development, deployment and marketing of HBOGO and MAXGO, the company’s digital streaming services. She first joined HBO in 1998 and previously held roles at advertising firm BBDO, American Express and Salomon Brothers.