TVNewser noticed that the show posts a web video of the chatter among the panelists during commercial breaks. On this weekend's show, they started talking about how they weren't gonna talk about Murdoch's current scandal.

You can watch the video here.  The conversation consisted mainly of right-wing panelist Cal Thomas saying, "Anyone want to bring up the subject we're not talking about, for the streamers?"

That elicited some chuckles, and Thomas said: "I'm not going to touch it."

{NOTE: Johnston's column on NewsCorp.'s tax rebate has been retracted; read his explanation of his error here):  Other things the show won't likely discuss: David Cay Johnston notes in a Reuters column that Murdoch manages to make money on his U.S. taxes:

Over the past four years Murdoch's U.S.-based News Corp. has made money on income taxes. Having earned $10.4 billion in profits, News Corp. would have been expected to pay $3.6 billion at the 35 percent corporate tax rate. Instead, it actually collected $4.8 billion in income tax refunds, all or nearly all from the U.S. government.

How The Evening Newscasts Covered the Tea Parties

• NBC Nightly News led with two stories on tax day. Lee Cowan reported on the tea parties while Savannah Guthrie reported on the White House message of middle-class tax cuts. In his open, Brian Williams said the tea parties were "organized on the Internet and by some cable TV personalities."

• ABC's World News made it the third story. First a soundbite from President Obama and a Dan Harris story on the tea parties which were "cheered on by Fox News and talk radio," Harris explained. The Charles Gibson broadcast led with two stories on the pirate attacks--Jim Sciutto in Kenya with the crew of the Maersk Alabama and David Muir with a story on the attack of another U.S. ship.

• CBS Evening News led with tax day--a soundbite from President Obama, a live picture of a rally in Arlington, Texas and a tea party story from Dean Reynolds. Reynolds referenced "a fistful of rightward leaning websites and commentators...embraced the cause," while showing Neil Cavuto and Glenn Beck at two different rallies.