David M. Zaslav (born January 15, 1960) is the president and chief executive officer of Discovery Communications, a position he has held since January 2007. He was previously an executive at NBC Universal.
Zaslav spent nearly two decades at NBC, where he worked to develop and launch CNBC, MSNBC and negotiate deals on behalf of NBCU with DirecTV, Comcast and Time Warner. As president of Cable and Domestic TV and New Media Distribution, he oversaw content distribution to all forms of TV, led negotiations for cable and satellite carriage of NBC Universal networks and forged new media partnerships, including a video-on-demand deal with the leading cable operator, Comcast.
His responsibilities extended to Bravo, CNBC World, SCI FI, ShopNBC, Sleuth, Telemundo, Telemundo Puerto Rico, mun2, Trio, Universal HD, USA Network, NBC Weather Plus and the Olympics on cable. Zaslav also oversaw NBC Universal's interests in AE, The History Channel, The Biography Channel, National Geographic International, the Sundance Channel and TiVo.
Discovery also is a provider of educational products and services to schools, including a series of K-12 digital textbooks, through Discovery Education, and Discovery Digital Networks.