What series was directed by Mark Roskin?
CREATE TABLE table_20704243_3 (series__number INTEGER, directed_by VARCHAR)
SELECT MIN(series__number) FROM table_20704243_3 WHERE directed_by = "Mark Roskin"
### Context: CREATE TABLE table_20704243_3 (series__number INTEGER, directed_by VARCHAR) ### Question: What series was directed by Mark Roskin? ### Answer: SELECT MIN(series__number) FROM table_20704243_3 WHERE directed_by = "Mark Roskin"