Here's the answer to my question about how CNN would do by ignoring Anna Nicole. The winner of each hour is in green:

At 3pm, FNC averaged 323,000, MSNBC averaged 164,000, and CNN averaged 120,000 in the demo.

At 4pm, FNC averaged 170,000, MSNBC averaged 277,000, and CNN averaged 135,000 in the demo.

At 5pm, FNC averaged 258,000, MSNBC averaged 388,000, and CNN averaged 176,000 in the demo.

At 6pm, FNC averaged 321,000, MSNBC averaged 525,000, and CNN averaged 215,000 in the demo.