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_17901155_4 (original_us_air_date VARCHAR, viewers__millions_ VARCHAR)
### Question:
Which US air date had 4.4 million viewers?
### Answer:
SELECT original_us_air_date FROM table_17901155_4 WHERE viewers__millions_ = "4.4"