CREATE TABLE "table1_23918997_1" (
  "no" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text,
  "u_s_viewers_million" text
);

Question: Who were all the writers whose episodes had 0.97 million viewers?
SQL: SELECT "written_by" FROM "table1_23918997_1" WHERE "u_s_viewers_million"='0.97';

Question: How many directors worked on the episode written by Brent Fletcher & Miranda Kwok?
SQL: SELECT COUNT("directed_by") FROM "table1_23918997_1" WHERE "written_by"='Brent Fletcher & Miranda Kwok';

Question: What was the title of the episode directed by Rowan Woods?
SQL: SELECT "title" FROM "table1_23918997_1" WHERE "directed_by"='Rowan Woods';

Question: How many episodes were viewed by 1.29 million people?
SQL: SELECT COUNT("no") FROM "table1_23918997_1" WHERE "u_s_viewers_million"='1.29';