Question: What is the original air date when the u.s. viewers in millions was 5.39?
SQL: SELECT "Original air date" FROM "1-27720737-1" WHERE "U.S. viewers (million)" = '5.39';

Question: What is the title of the series # 8?
SQL: SELECT "Title" FROM "1-27720737-1" WHERE "Series #" = 8.0;

Question: What is the highest series # directed by Ken Whittingham?
SQL: SELECT MAX("Series #") FROM "1-27720737-1" WHERE "Directed by" = 'Ken Whittingham';

Question: How many episodes had a production code 120?
SQL: SELECT COUNT("Series #") FROM "1-27720737-1" WHERE "Production code" = 120.0;