CREATE TABLE table_23705843_1 (original_air_date VARCHAR2, ratings__millions_ VARCHAR2)

What is the original air date if the ratings is 1.92 million?
SELECT original_air_date FROM table_23705843_1 WHERE ratings__millions_ = "1.92"
SELECT "original_air_date" FROM "table_23705843_1" WHERE "1.92" = "ratings__millions_"