CREATE TABLE table_16444 ("Series #" FLOAT, "Episode #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

What was the original air date for Series 36?
SELECT "Original air date" FROM table_16444 WHERE "Series #" = '36'
SELECT "Original air date" FROM "table_16444" WHERE "Series #" = '36'