CREATE TABLE table_15943 ("Season" FLOAT, "Timeslot  (  ET  ) " CLOB, "Season premiere" CLOB, "Season finale" CLOB, "TV season" CLOB, "Rank" CLOB, "Viewers  ( millions ) " CLOB)

What is the year of the season that was 12?
SELECT "TV season" FROM table_15943 WHERE "Season" = '12'
SELECT "TV season" FROM "table_15943" WHERE "Season" = '12'