Should Headline News thank Anna Nicole for its ratings gains this month? The month of February was "a complete success story for the network," a press release says this afternoon.

Showbiz Tonight was the biggest percentage winner, scoring its best delivery to date in February and averaging 202,000 demo and 386,000 total viewers. The 11pm show more than doubled its viewership compared to last February (up 132 percent in the demo and 128 percent in viewers).

Other ratings increases: Prime News was up 110 percent in the demo and 120 percent in viewers. Nancy Grace was up 45 percent in the demo at 8pm and up 43 percent in the demo at 10pm. Glenn Beck was up 96 percent in the demo at 7pm (but only 19 percent in the demo at 9pm).

> Also: "Up against MSNBC’s 10-12M Doc Block, Headline News was on top among both total viewers and the demo (406k vs. 344K) and (198k vs. 163k)," CNN says...