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_name_65 (air_date VARCHAR, viewers VARCHAR)
### Question:
When did the episode air that had 7.3 viewers?
### Answer:
SELECT air_date FROM table_name_65 WHERE viewers = 7.3