Question: What date did the episode "The Killing (part two)" originally air?
SQL: SELECT "Originalairdate" FROM "1-2370579-1" WHERE "Title" = '"The Killing (part two)"';

Question: Who directed the episode written by Tony O'Grady (pseudonym of Brian Clemens)?
SQL: SELECT "Directed by" FROM "1-2370579-1" WHERE "Written by" = 'Tony O''Grady (pseudonym of Brian Clemens)';

Question: What is the production number for episode 23?
SQL: SELECT MIN("Prod #") FROM "1-2370579-1" WHERE "Episode #" = 23.0;

Question: What month and year was "Storm Warning (part one)" filmed?
SQL: SELECT "Filmed" FROM "1-2370579-1" WHERE "Title" = '"Storm Warning (part one)"';