CREATE TABLE table_23399481_3 (series__number VARCHAR, us_viewers__in_millions_ VARCHAR)

What episode had 1.42 million viewers?
SELECT series__number FROM table_23399481_3 WHERE us_viewers__in_millions_ = "1.42"
SELECT "series__number" FROM "table_23399481_3" WHERE "1.42" = "us_viewers__in_millions_"