CREATE TABLE table_26032 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "U.S. viewers  ( in millions ) " TEXT)

What is the original air date for episode 4?
SELECT "Original air date" FROM table_26032 WHERE "Season #" = '4'
SELECT "Original air date" FROM "table_26032" WHERE "Season #" = '4'