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_29803475_2 (original_air_date VARCHAR, us_viewers__million_ VARCHAR)
### Question:
What is every original air date with U.S. viewers of 0.23 million?
### Answer:
SELECT original_air_date FROM table_29803475_2 WHERE us_viewers__million_ = "0.23"