Name the directed by for 15.15 viewers
CREATE TABLE table_16617011_1 (directed_by VARCHAR, us_viewers__millions_ VARCHAR)
SELECT directed_by FROM table_16617011_1 WHERE us_viewers__millions_ = "15.15"
### Context: CREATE TABLE table_16617011_1 (directed_by VARCHAR, us_viewers__millions_ VARCHAR) ### Question: Name the directed by for 15.15 viewers ### Answer: SELECT directed_by FROM table_16617011_1 WHERE us_viewers__millions_ = "15.15"