CREATE TABLE "table1_24910737_1" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "u_s_viewers_millions" text
);

Question: What is the episode title that had a US viewership of 8.16?
SQL: SELECT "title" FROM "table1_24910737_1" WHERE "u_s_viewers_millions"='8.16';

Question: What is the number in the series written by Steve Blackman and had a title of "Worlds Apart"?
SQL: SELECT "no_in_series" FROM "table1_24910737_1" WHERE "written_by"='Steve Blackman' AND "title"='\"Worlds Apart\"';

Question: What is the number in the series that was titled "Past Tense"?
SQL: SELECT "no_in_series" FROM "table1_24910737_1" WHERE "title"='\"Past Tense\"';

Question: Who wrote the episodes that had a viewership of 7.14?
SQL: SELECT "written_by" FROM "table1_24910737_1" WHERE "u_s_viewers_millions"='7.14';