What is the season # where production code is k1505?
CREATE TABLE "season_3_1996_1997" (
  "series_num" real,
  "season_num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "musical_guest_and_song" text,
  "original_air_date" text,
  "production_code" text
);
SELECT MIN("season_num") FROM "season_3_1996_1997" WHERE "production_code"='K1505';