CREATE TABLE table_72653 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" FLOAT, "Viewers  ( millions ) " TEXT)

What season has an episode written by john o'bryan and directed by ethan spaulding?
SELECT "No. in season" FROM table_72653 WHERE "Written by" = 'John O''Bryan' AND "Directed by" = 'Ethan Spaulding'
SELECT "No. in season" FROM "table_72653" WHERE "Directed by" = 'Ethan Spaulding' AND "Written by" = 'John O\'Bryan'