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_19501664_1 (us_viewers__millions_ VARCHAR, directed_by VARCHAR)

### Question ###
Name the viewers for the episode directed by tony phelan

### Accurate SQL ###

SELECT us_viewers__millions_ FROM table_19501664_1 WHERE directed_by = "Tony Phelan"