รอบปฐมทัศน์ของฤดูกาลมีผู้ชม 15.27 ล้านคน?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many season premieres had 15.27 million viewers?It is not neccessary to use all the tables.
 table_27553627_2:  (season [ VARCHAR ] viewers__in_millions_ [ VARCHAR) ]
SELECT COUNT(season) AS premiere FROM table_27553627_2 WHERE viewers__in_millions_ = "15.27"