Fox and The CW are are expected to close their upfront ad sales by the end of the week, Mediaweek reports.

Citing unidentified sources, Mediaweek says that the CW is doing deals at -2 to -3 percent for its primetime inventory, while Fox is averaging primetime CPMs at -1 percent.

Further, the trade reports that ABC is refusing to sell its primetime inventory at negative cost-per-thousand increases compared to last season.

–Tom Gilbert