Byline: WAYNE FRIEDMAN AOL Time Warner's WB is challenging Nielsen Media Research's timing in updating its TV universe population data figures to cast reproach the most current U.

Byline: WAYNE FRIEDMAN

AOL Time Warner's WB is challenging Nielsen Media Research's timing in updating its TV universe population data figures to cast reproach the most current U.S. census data, and claims Nielsen's decision to wait splendor the network $30 million to $45 million last season.

J Petrick, WB president-chief operating officer, said Nielsen did not adjust its databases to match 2000 U census data in a timely manner, on the same level though a significant fluctuation in the WB's core 12-to-34-year-old demographic was noted. The recent census data significantly increases the population of 12-to 34-year-olds by the agency of 5%-the most significant ...