CREATE TABLE table_11664625_2 (no_in_season INT, us_viewers__millions_ VARCHAR)

When is the first season there were 14.57 million U.S viewers?
SELECT MIN(no_in_season) FROM table_11664625_2 WHERE us_viewers__millions_ = "14.57"
SELECT MIN("no_in_season") FROM "table_11664625_2" WHERE "14.57" = "us_viewers__millions_"