平均 へいきん視聴 しちょう りつではありませんでした
heikin shi chōritsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 平均視聴率

1. Was not the average viewership.; Was not an average rating.

Past/Perfective
Negative
Polite
Formal Register