What was the production code for the episode titled "Misery date"?
CREATE TABLE "aaahh_real_monsters_season_4_episodes" (
  "no_in_series" text,
  "no_in_season" text,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text
);
SELECT "production_code" FROM "aaahh_real_monsters_season_4_episodes" WHERE "title"='\"Misery Date\"';