CREATE TABLE table_3662 ("Series #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "U.S. viewers  ( millions ) " TEXT)

How many million viewers watched episode 3 in the series?
SELECT "U.S. viewers (millions)" FROM table_3662 WHERE "Series #" = '3'
SELECT "U.S. viewers (millions)" FROM "table_3662" WHERE "Series #" = '3'