There was a time when he was "all that."

So big, so quoted, so "it," that it seems hard to believe he has now become a "so what?"

The Dan Rather era is over. Reports are that he's leaving CBS, not with the bang by which he came in, but with barely so much as a kind whisper on the way out.

CBS executives are apparently not interested in extending his contract. Not for reporting. Not for commenting. Not for anything.

It's the Katie Couric era now. The "Dan-wagon" has come and gone. And the man who staked his fame covering the assassination of President Kennedy has now been put out to his own grassy knoll.

It is a reminder — as if any of us needs it — that fame, like ratings, passes.

Dan had a good run: nearly a quarter century in the chair Uncle Walter sat. He covered everyone. He went everywhere. Politicians feared him. Late night comics quoted him. Countless media blogs hated him.

There was a time when Dan scored the biggest TV news contract ever. And now, no contract at all.

I'm not here to judge why things went the way they did for Dan, just that they did. Just like they do for so many superstars who super-nova out: bright one minute, dark the next.

It's a profession and a world that reminds us that the news comes and goes. Even for the folks who tell it.

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Watch Neil Cavuto weekdays at 4 p.m. ET on "Your World with Cavuto" and send your comments to cavuto@foxnews.com

Neil Cavuto serves as senior vice president, anchor and managing editor for both FOX News Channel (FNC) and FOX Business Network (FBN). He is anchor of FNC's Your World with Cavuto - the number one rated cable news program for the 4 p.m. timeslot - as well as the FNC Saturday show Cavuto on Business. He also hosts Cavuto on FBN weeknights at 8 p.m. In addition to anchoring daily programs and breaking news specials on FNC and FBN, Cavuto oversees business news content for both networks and FNC's weekend business shows, including Bulls & Bears, Forbes on Fox, and Cashin' In. Click here for more on Neil Cavuto.