CREATE TABLE "table1_16951593_1" (
  "no_in_series" text,
  "no_in_season" text,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text,
  "u_s_viewers_millions" text
);

Question: Name the original air date of 1/2 in season
SQL: SELECT "original_air_date" FROM "table1_16951593_1" WHERE "no_in_season"='1/2';

Question: Name the original air date for number in season being 13
SQL: SELECT "original_air_date" FROM "table1_16951593_1" WHERE "no_in_season"='13';

Question: Namee the title for production code for 4014
SQL: SELECT "title" FROM "table1_16951593_1" WHERE "production_code"='4014';

Question: Name the title for number in season 9
SQL: SELECT "title" FROM "table1_16951593_1" WHERE "no_in_season"='9';

Question: Name who wrote the episode that had 7.56 million viewers
SQL: SELECT "written_by" FROM "table1_16951593_1" WHERE "u_s_viewers_millions"='7.56';