Question: What is the episode title that had a US viewership of 8.16?
SQL: SELECT "Title" FROM "1-24910737-1" 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 "1-24910737-1" 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 "1-24910737-1" WHERE "Title" = '"Past Tense"';

Question: Who wrote the episodes that had a viewership of 7.14?
SQL: SELECT "Written by" FROM "1-24910737-1" WHERE "U.S. viewers (millions)" = '7.14';