CREATE TABLE table_16334 ("Season" FLOAT, "Episodes" FLOAT, "Time slot  ( EST ) " TEXT, "Season premiere" TEXT, "Season finale" TEXT, "TV season" TEXT, "Rank" TEXT, "Viewers  ( in millions ) " TEXT)

What episodes are there where the season premier is September 23, 2009?
SELECT "Episodes" FROM table_16334 WHERE "Season premiere" = 'September 23, 2009'
SELECT "Episodes" FROM "table_16334" WHERE "Season premiere" = 'September 23, 2009'