Journalist Richard Siklos is joining Time Warner as VP of corporate affairs, responsible for external communications and media strategy. Previously, Siklos served as editor-at-large for Fortune, media reporter for The New York Times, and media editor for BusinessWeek. Most recently, he wrote a column for the New York Observer while writing a book about Michael Jackson. Siklos will report to Gary Ginsberg, EVP of corporate affairs and marketing.

On Friday, Comcast announced that Abernathy MacGregor president Adam Miller would be joining the company as a senior adviser.