This is important...
...in my view.
My uncle was the executive producer of ABC evening news and Peter was the face. Peter, in essence, got unc fired in the 80's and Peter became the producer AND star of the evening news.
http://www.cnsnews.com/ViewNation.asp?Page=\Nation\archive\200305\NAT20030501c.html
Now, as you older folks will remember, the big three, ABC, NBC and CBS were the WORD back in the day. There was no cable nor talk radio nor web to offer other views, opinions or, frankly, competition.
People like Dan Rather who brought their bias' so blatantly to the screen simply did not nor could not exist in a world where Cronkite (CBS), Brinkley (NBC) and Howard K. Smith (ABC) strode. These people were viewed as the pinnacles of integrity and honesty. They delivered THE NEWS but they were NOT the producers of their own programs.
I think there is a case to be made that having the 'face' also produce the news he is 'reporting' is, at root, a bad idea and also a prime factor in what we see as wrong with the mainstream media; it becomes about Peter and Dan and Tom, not the news.
I think many will recall that when CNN started showing up on the scene one of the strongest attractions was, at the time, they simply reported the news and it stood in stark contrast to reports by Jennings and Rather who had reached such levels of power that their shows had become how they saw the world and not what one would call reporting.
For the record my uncle thought highly of Jennings and when I met him he truly had that 'star power', that magnetism that famous people are always said to have. Also, in person he looked just like he did on TV unlike many people who look wierd off camera.
In any event, I think Jennings was, to me, part of the problem, the genesis, in terms of why network news has lost its credibility.
Aside from that, my condolenses to the Jennings family.