CREATE TABLE "table1_29584601_1" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real
);

Question: How many different season numbers does the episode "The Nineteenth Hole" have?
SQL: SELECT COUNT("no_in_season") FROM "table1_29584601_1" WHERE "title"='\"The Nineteenth Hole\"';

Question: How many different pairs of writers wrote the episode with series number 56?
SQL: SELECT COUNT("written_by") FROM "table1_29584601_1" WHERE "no_in_series"=56;