CNN Promotes Research Execs

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, ( 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.