National Roll Up

July 25, 2012

CIMM DEFINITION: National roll up is the process of matching time zone and local schedules to produce reliable and accurate national program and spot measurement.  Unscheduled delays, differences in markets are accounted for by using as-run data as well as auditing spot start times with our fast forward data (does viewership line up as expected with spots at higher fast forward periods). (Source: TIVO)