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_25640730_7 ( canadian_viewers__millions_ VARCHAR, directed_by VARCHAR )

### Question ###
If the director is Yannick Bisson, what was the Canadian amount of viewers?

### Accurate SQL ###

SELECT COUNT(canadian_viewers__millions_) FROM table_25640730_7 WHERE directed_by = "Yannick Bisson"