12x03 มีกี่ตอน?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many episodes are numbered 12x03?It is not neccessary to use all the tables.
 table_23292220_13:  (first_broadcast [ VARCHAR ] episode [ VARCHAR) ]
SELECT COUNT(first_broadcast) FROM table_23292220_13 WHERE episode = "12x03"