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_13301516_1 ( us_viewers__millions_ VARCHAR, no_in_series VARCHAR )

### Question ###
How many millions of U.S. viewers watched episode 185?

### Accurate SQL ###

SELECT us_viewers__millions_ FROM table_13301516_1 WHERE no_in_series = 185