CREATE TABLE table_19609 ("Series #" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production Code" FLOAT, "U.S. viewers  ( millions ) " CLOB)

15.03 million u.s viewers seen what episode?
SELECT "Title" FROM table_19609 WHERE "U.S. viewers (millions)" = '15.03'
SELECT "Title" FROM "table_19609" WHERE "U.S. viewers (millions)" = '15.03'