Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_1231892_4 (production_code VARCHAR, us_air_date VARCHAR)
### Question:
what's the total number of episodes with a US air date of january 15, 2005?
### Answer:
SELECT COUNT(production_code) FROM table_1231892_4 WHERE us_air_date = "January 15, 2005"