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_27547668_2 (original_airdate VARCHAR, viewers VARCHAR)

### Question ###
What is the original air date of the episode with 908000 viewers?

### Accurate SQL ###

SELECT original_airdate FROM table_27547668_2 WHERE viewers = 908000