Noun

(uncountable) The condition or quality of being regular; as, regularity of outline

I have been watching that show with regularity .

* {{quote-news

, year=2011 , date=October 29 , author=Phil McNulty , title=Chelsea 3 - 5 Arsenal , work=BBC Sport citation , page= , passage=For Chelsea coach Andre Villas-Boas, this was his most sobering moment in the Premier League and he looked stunned on the sidelines at the regularity with which Chelsea's defence was exposed.}}

(countable) A particular regular occurrence