When did the episode air that had 7.3 viewers?
CREATE TABLE table_name_65 (air_date VARCHAR, viewers VARCHAR)
SELECT air_date FROM table_name_65 WHERE viewers = 7.3
### 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