CREATE TABLE "table1_27657925_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: When 62 is the number in series who is the writer?
SQL: SELECT "written_by" FROM "table1_27657925_1" WHERE "no_in_series"='62';

Question: When steve holland is the writer what is the air date?
SQL: SELECT "original_air_date" FROM "table1_27657925_1" WHERE "written_by"='Steve Holland';

Question: When 231 is the production code what is the title?
SQL: SELECT "title" FROM "table1_27657925_1" WHERE "production_code"='231';

Question: When there are 5.2 million u.s. viewers how many numbers in series are there?
SQL: SELECT COUNT("no_in_series") FROM "table1_27657925_1" WHERE "u_s_viewers_millions"='5.2';