Though battles between news anchors have historically been between rival networks, today's ripest feud is a purely CBS affair: Katie vs. Dan.

The rivalry took a humorous turn Thursday when a video was posted on the Web showing Katie Couric mocking Dan Rather while preparing to anchor a broadcast from Nashville, Tenn., last week.

The video shows Couric fiddling with her coat. A video last month showed Rather obsessing over whether to wear a coat.

"I'm going to be like Dan Rather on YouTube," joked Couric, alluding to Rather by fiddling with her coat. "Geez, don't you think he deserves a little payback?"