Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_26565917_2 ( original_air_date VARCHAR, us_viewers__millions_ VARCHAR )

### Question ###
when did 14.55 people watch?

### Accurate SQL ###

SELECT original_air_date FROM table_26565917_2 WHERE us_viewers__millions_ = "14.55"