Wednesday was a big day for ABC News as the channel has made some pretty big announcements that day. The changes include the stepping down of Diane Sawyer as network's anchor starting August, and the next big news involves Sawyer being replaced with David Muir, who is a rising anchor. George Stephanopoulos, a "Good Morning America" co-host will then become the primary anchor for all breaking news coverage, including the highlights about the election.

This new organization seems to be the first of its kind, as it somehow breaks the chain of a long-standing system of TV news wherein the evening news anchor is always the chief anchor for every news channel. Take ABC's Peter Jennings and CBS' Walter Cronkite, for instance.

It would seem that Stephanopoulos will be adding "chief anchor" to his resume, particularly since he will be Muir's superior in every event of a live coverage of breaking news.

Additionally, these changes put even more emphasize on how morning news shows hold a bit of a dominance compared to any other news shows on a different time slot. Back then, Tom Brokaw was the host of the "Today" show of NBC, which was, and still is, a highly successful morning news show. Brokaw, due to his skill in the delivery of both good and bad news to the public, was then promoted to becoming an evening news anchor, which was a dream news anchor position.

The reason why Muir is Sawyer's replacement and not Stephanopoulos is that he does not hold an important role in the top-rated morning news show of ABC, "Good Morning America", in order to be transferred to an evening news shift.

Andrew Tyndall of the "Tyndall Report" said, "The significance here is ABC is telling its viewers that its most knowledgeable and serious journalist is now to be found not at 6:30 in the evening, but at 7 o'clock in the morning."