Brian Lewis has been promoted to executive VP of corporate communications for Fox Television Stations, which includes Twentieth Television and MyNetworkTV-the new network that will launch Sept. 5-as well as Fox News. The announcement was made Tuesday by Roger Ailes, chairman of Fox Television Stations and chairman and CEO of Fox News, to whom Mr. Lewis will report and for whom Mr. Lewis also will serve as a senior advisor.

Mr. Lewis had been senior VP of corporate communications for Fox News since 2000. Mr. Lewis’ expanded responsibilities will include oversight of all corporate communications and public relations functions for the television and online divisions of Fox Television Stations as well as the television, radio and online sectors that Fox News will encompass if the proposed business network is launched.

“Brian is one of the best corporate communications professionals in the business. He has met with unparalleled success in helping to build and maintain the integrity of the Fox News brand from its infancy,” Mr. Ailes said in the announcement. “I look forward to him doing the same for the stations group and Twentieth Television.”

Mr. Lewis was one of the first employees hired by Mr. Ailes at Fox News. He had worked as VP of corporate communications for Mr. Ailes at CNBC before joining Fox seven months before the launch of Fox News Channel in 1996.