Fox Broadcasting has begun writing orders for upfront advertising at high-single-digit increases compared to last year, Advertising Age reports.

According to the report, by Ad Age media expert Brian Steinberg, "Other networks are also moving along. CBS is in active negotiations with advertisers over inventory in a range of dayparts, according to one person familiar with the situation. And auto advertisers have been putting down money on football and other sports at CBS, NBC, Fox, ESPN and Turner, according to ad-sales executives at those networks."

To read the complete Ad Age report, click here.