Ad Sales Unit 03 - How audiences get measured

Commercial rating

Audience measured during commercial minutes rather than program content

Currency

The measurement provider and methodology a contract treats as authoritative

Demographic (demo)

A defined audience slice, e.g. A25-54

Frequency

Average number of exposures per reached person

GRP

Gross rating points: sum of spot ratings, including duplication

Impression

One exposure of one ad to one person (estimated in linear, counted in digital)

Panel

A representative sample of households whose viewing is metered

Rating

Percentage of the universe that viewed; one point = one percent

Reach

Deduplicated count of distinct people exposed at least once

Restatement

A provider revising previously final data

Share

Percentage of people currently watching TV who viewed this program

Universe / universe estimate

The defined population being measured, and its estimated size

Viewing window

How much delayed playback counts (Live, L+SD, L+3, L+7)