Gregg Liebman has been promoted to senior vice president of Cable News Network ad-sales research.
Liebman, who has been with Turner Broadcasting System Inc. since 2004, will be responsible for leading staff research analysis and strategy support for the CNN News Group ad-sales division, which includes CNN/U.S., CNN Headline News, CNN.com (www.cnn.com) and other CNN-branded news networks and services.
CNN also announced that Keith Berkelhamer has been promoted to VP of CNN ad sales digital research.
