Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2221374_3 ( original_air_date VARCHAR, directed_by VARCHAR, production_code VARCHAR )

### Question ###
What date was the episode originally aired that was directed by James Widdoes and the production code is 320?

### Accurate SQL ###

SELECT original_air_date FROM table_2221374_3 WHERE directed_by = "James Widdoes" AND production_code = 320