Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_24639086_3 ( original_air_date VARCHAR, viewers__in_millions_ VARCHAR )

### Question ###
If the amount of viewers is 2.48 million, what is the original air date?

### Accurate SQL ###

SELECT original_air_date FROM table_24639086_3 WHERE viewers__in_millions_ = "2.48"