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_name_15 ( first_aired VARCHAR, entrepreneur_s_ VARCHAR )

### Question ###
What episode featured entrepreneur Richard Ernest?

### Accurate SQL ###

SELECT first_aired FROM table_name_15 WHERE entrepreneur_s_ = "richard ernest"