A computer-implemented method of using video viewer interaction data as input to a measurement engine which then calculates: demographic level and aggregate level (a) household reach for advertisements and video content based on user defined reach periods, (b) One-minute, Thirty-minute, and Sixty-minute channel viewing metrics, and (c) One-minute, Thirty-minute, and Sixty-minute aggregate viewing metrics, all based on second-by-second household level viewing activity. Also shows creation of Commercial Schedule Cumulative Audience, Impressions for Reach Periods, Demographic Group Impressions, Average Audience, Average Audience Share, Average Rating, Households Using Television, and Households Using Television Percent using household level data. Works with IP and linear video delivery. Together these metrics provide detailed information on customer viewing behavior which can be used to drive business decisions for service providers, advertisers, and content producers.