starting at the beginning of december. >> this announcement is huge. joining us to dissect it all, brian stelser. how does it change the media landscape? what does it say to you? >> it's still the biggest news cast in america. these nightly news casts guess 22, 23 million viewers a night. people are getting their news so many different ways. the nightly news casts still matter and david muir will be the face of that nightly news cast, but what's so interesting is that george stephanopoulos will be the main breaking news anchor. we've never seen a break up of the duties like this before. >> they have announced that george will be the chief anchor of this and the money is in the morning. did try to get a great show that