CREATE TABLE table_72605 ("Series #" FLOAT, "Season #" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "U.S. viewers  ( million ) " CLOB)

Which episode number drew in 3.35 million viewers in the United States?
SELECT COUNT("Series #") FROM table_72605 WHERE "U.S. viewers (million)" = '3.35'
SELECT COUNT("Series #") FROM "table_72605" WHERE "U.S. viewers (million)" = '3.35'