SELECT title FROM table_16617025_1 WHERE us_viewers__millions_ = "20.94"
CREATE TABLE table_16617025_1 (title VARCHAR, us_viewers__millions_ VARCHAR)
ชื่อตอนใดมีผู้ชม 20.94 ล้านคนในสหรัฐฯ
What episode titles have 20.94 million U.S. viewers?