Katie's going

Rumored for months, Katie Couric is apparently ready to make the jump to CBS where she will become the first woman to solo anchor a network's nightly newscast.

Howard Kurtz cites "well-placed" sources as confirming the deal may be announced soon.

This will set of a tsunami of changes everywhere, starting with the Today Show, where Katie could be replaced by Meredith Viera.

The Philadelphia Inquirer's Gail Shister says the announcement will come by Thursday, "at the latest."