David Zaslav, President and CEO, Discovery Communications

David Zaslav, president and CEO of Discovery Communications, sets the strategy and oversees all operations of the world's number one nonfiction media company. Through Discovery's 100-plus TV networks, the brand that empowers people to explore their world and satisfy their curiosity reaches more than 1.5 billion cumulative subscribers in over 170 countries, and its websites attract more than 30 million combined unique visitors per month. Prior to taking the helm at Discovery in January 2007, Zaslav was at NBC Universal, where he served as president of cable and domestic TV and new media distribution. He was also instrumental in developing and launching CNBC, played a key role in creating MSNBC, and oversaw the company's interests in A&E, The History Channel, The Biography Channel, and National Geographic International, among others. He was previously an attorney with the New York firm of LeBouef, Lamb, Leiby & MacRae, and currently serves on the boards of the National Cable & Telecommunications Association, The Cable Center, the Center for Communication, TiVo, and The Paley Center for Media, and is an honorary chair of Cable Positive.