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_20704243_6 (title VARCHAR, directed_by VARCHAR)

### Question ###
What episode did John Rogers direct?

### Accurate SQL ###

SELECT title FROM table_20704243_6 WHERE directed_by = "John Rogers"