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_11220799_2 (episode_titles VARCHAR, first_air_date VARCHAR)

### Question ###
How many episodes had their first air date on March 6, 2008?

### Accurate SQL ###

SELECT COUNT(episode_titles) FROM table_11220799_2 WHERE first_air_date = "March 6, 2008"