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_17766232_7 (radio_commentator VARCHAR, final_television_commentator VARCHAR)

### Question ###
Who was the radio commentator when the final television commentator was John Dunn? 

### Accurate SQL ###

SELECT radio_commentator FROM table_17766232_7 WHERE final_television_commentator = "John Dunn"