David Zaslav’s ascension to President and CEO of Discovery Communications is getting a lot of attention today. He’s the second NBC executive to exit this week, following TV group President and COO Randy Falco’s move to AOL. At Discovery, Zaslav will work for Founder and Chairman John S. Hendricks, whom Zaslav calls a mentor and credits for helping him join the cable industry in the ’80s. Discovery board member Pat Esser, President of Cox Communications, one of Discovery’s owners, said of Zaslav: “His unique understanding of strategic development, programming and operations will absolutely be a huge asset to Discovery’s continued success and long-range outlook.” A sampling of today’s media coverage about Zaslav: The New York Times, The Washington Post, Multichannel News, Broadcasting & Cable.