Earlier today, I asked why CNN has stuck Paula Zahn in front of green screen for her 8pm broadcast. Several e-mailers speculated that a set change was in the works. One person put it this way: "Green screen = coming set change which = beginning of ratings-driven panic changes."

But an insider says the green screen is good: "The chroma key is to bring Paula Zahn closer to the story and work with a virtual environment. It is only for two blocks a show. In fact, I believe that Klein liked it so much, that Anderson starts his show in front of the green screen."