What is the U.S. air date when the U.S. viewers are 7.5 million?
CREATE TABLE table_2866503_1 (us_air_date VARCHAR, us_viewers__million_ VARCHAR)
SELECT us_air_date FROM table_2866503_1 WHERE us_viewers__million_ = "7.5"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_2866503_1 (us_air_date VARCHAR, us_viewers__million_ VARCHAR) Question: What is the U.S. air date when the U.S. viewers are 7.5 million? [/INST] SELECT us_air_date FROM table_2866503_1 WHERE us_viewers__million_ = "7.5" </s>