noun
average audience rating
Used in broadcasting and media contexts to refer to the average viewership percentage over a period or across episodes.
このドラマの平均視聴率は15%を超えた。
The average audience rating for this drama exceeded 15%.
Refers to a specific audience rating (e.g., for a single episode), while 平均視聴率 is the average over multiple episodes or a season.
Compound of 平均 (average) + 視聴率 (audience rating).