CREATE TABLE table_27553627_2 (season VARCHAR, viewers__in_millions_ VARCHAR)

How many season premieres had 15.27 million viewers?
SELECT COUNT(season) AS premiere FROM table_27553627_2 WHERE viewers__in_millions_ = "15.27"
SELECT COUNT("season") AS "premiere" FROM "table_27553627_2" WHERE "15.27" = "viewers__in_millions_"