What is the difference between “average half-hour audience” and “any viewing,” for a TV daypart?
“Any viewing” for a given TV daypart captures everyone who viewed a half-hour or more of TV during that daypart. This is determined by “orring” together everyone who viewed to a single half-hour, two half-hours, etc. of the daypart. The “half-hour average audience” is the average number of people who watched TV during a single half-hour in that daypart; MRI computes this by calculating the total number of half-hours viewed and dividing that by the total number of daypart viewers.
