Irena Briganti, the oft-discussed and rarely seen No. 2 at Fox News' PR department, gets the field guide treatment. [Gawker]

When the Fox Business Network celebrates its launch at the Metropolitan Museum of Art tonight, don't think they're doing it for the PR buzz. Nope, it's just an in-house celebration of course — since Fox's unwritten policy dictates that you should never signal the media to expect something amazing from you. Says FBN communications chief Irena Brigant: "[If a new offering doesn’t succeed], a lot of people often later blame the media. They say, ‘You know what, it was the media that really set the expectations high.’ No, actually it was the PR people that set the expectations through the roof, and couldn’t deliver upon them."

Which is why they've invited, and received confirmation from, Ivanka Trump — a guest who will always deliver, and never leave you feeling disappointed. Unworthy, perhaps, but never disappointed.

Are things going downhill fast at Fox News Channel's media relations department, just as they're trying to generate positive buzz for today's launch of Fox Business Channel?

Michael Murphy, a senior staffer at FNC's D.C. bureau, just walked off the job — following director Leah Yoon and regular spokesman Darin Johnson. For what it's worth, Michael emails us to say that he's "leaving on great terms," and, "I'm leaving to actually relocate home and be with my family at this time for personal reasons." Mainstay publicist Dana Klinghoffer, however, remains — as some of your pitch-filled inboxes can attest to.

Which begs the question: Just what state of mind is Irena Briganti in these days? Which is sort of a silly question, we know.

It's an event cable newies always hoped for: a run-in between MSNBC's Keith Olbermann and Fox News Channel's Bill O'Reilly. Last November, that very scenario took place at a fundraiser hosted by New York Yankees manager Joe Torre. So how'd the two sides of cable's most notorious war of words handle each other? They didn't, Keith told the crowd at Saturday's Television Critics Association event — while holding up a friendly O'Reilly head-on-a-stick and making the "Hail Hilter" sign for emphasis.

"He never got within 20 feet of me. [...] I swear to God, every time I looked up, he would suddenly look down. He was staring over at me. But we're about the same height, so I really don't think he's going to come talk to me. If I were about a foot shorter, I'm sure there would be a confrontation of some sort." [...]

Olbermann opened his session by whipping out a mask of O'Reilly - a poke at Fox asking journalists to accept handout photos of TCA news conferences from photographers the network had hired.

"We thought we'd help you out, those of you who needed a good photograph of," Olbermann said, pausing to hold up O'Reilly's photo glued to a stick as reporters laughed.

"It would be small for me to go through the entire lineup of that channel, but we did have one other one here," he said, holding up a photo of Fox news personality Greta Van Susteren. "This is a 3-D mask. Who knew? That's strange."

Meanwhile, the AP's David Bauder has a great rundown on the history of cable news swiping, with evidence that Fox News spokeswoman Irena Briganti is the real face that should be stuck on a stick and waved around in front of an open fire.

Olbermann writes another chapter in feud with O'Reilly [Beth Harris, AP]
Watch your back when Fox News wishes well [David Bauder, AP]