Question: What was the airdate of the episode that was directed by giancarlo volpe and written by is john o'bryan?
Schema: create table table_14562722_1 (original_air_date varchar, directed_by varchar, written_by varchar, PRIMARY KEY (original_air_date))
SQL: select original_air_date from table_14562722_1 where directed_by = "giancarlo volpe" and written_by = "john o'bryan"