CREATE TABLE "table1_28081876_6" (
  "series_no" real,
  "season_no" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real,
  "u_s_viewers_millions" text
);

Question: Who were the authors of the episode first broadcast on August 10, 2012?
SQL: SELECT "written_by" FROM "table1_28081876_6" WHERE "original_air_date"='August 10, 2012';

Question: How many million people in the US viewed the episode titled "Behind the Scenes"?
SQL: SELECT "u_s_viewers_millions" FROM "table1_28081876_6" WHERE "title"='\"Behind the Scenes\"';

Question: When was originally aired the episode with an audience of 1.57 million us viewers?
SQL: SELECT "original_air_date" FROM "table1_28081876_6" WHERE "u_s_viewers_millions"='1.57';

Question: What season number was assigned to the episode identified with the production code 401? 
SQL: SELECT "season_no" FROM "table1_28081876_6" WHERE "production_code"=401;