Broadcast Newsthe HOT ListTV/Cable News Primetime TV, Cable Upfront Revenues Stay Soft By RBR.com - September 10, 2015 0 FacebookTwitterWhatsAppLinkedinEmail Broadcast television networks and cable ad upfront revenues continue to soften. Significant marketers buy the majority of their TV advertising and about half of cable in the summertime “upfront” period, before the fall viewing season gets underway.Please Login to view this content. (Not a member? Join Today!)