Question: what is the original air date of the episode directed by Ben Jones and written by Steven Melching?
Schema: create table table_20360535_4 (original_air_date varchar, directed_by varchar, written_by varchar, PRIMARY KEY (original_air_date))
SQL: select original_air_date from table_20360535_4 where directed_by = "ben jones" and written_by = "steven melching"