1. A method, comprising: in a hardware advertisement management system that communicates with a plurality of advertiser order generation systems and electronically receives, via a communication network, deals comprising orders from advertisers: generating schedule spot counts for allocations of spots based on a selling title and week combination structure for a pending deal for an advertiser; generating a plurality of simulated spot schedules based at least on the schedule spot counts for the advertiser for a quarter; generating estimates of unduplicated audience for new spot schedules based on corresponding attributes for each of the plurality of simulated spot schedules; and generating a proposal based on the estimates of unduplicated audience.