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_14345690_15 ( series VARCHAR, main_presenter VARCHAR )

### Question ###
What series have Caroline Flack as a main presenter?

### Accurate SQL ###

SELECT series FROM table_14345690_15 WHERE main_presenter = "Caroline Flack"