CREATE TABLE table_27241 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "U.S. viewers  ( millions ) " TEXT)

What number in the series was episode 7 in the season?
SELECT "Series #" FROM table_27241 WHERE "Season #" = '7'
SELECT "Series #" FROM "table_27241" WHERE "Season #" = '7'