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_2226817_7 (directed_by VARCHAR, original_air_date VARCHAR)

### Question ###
If the original air date January 19, 1992, who was the episode directed by?

### Accurate SQL ###

SELECT directed_by FROM table_2226817_7 WHERE original_air_date = "January 19, 1992"