CREATE TABLE table_25640730_7 (canadian_viewers__millions_ VARCHAR2, directed_by VARCHAR2)

If the director is Yannick Bisson, what was the Canadian amount of viewers?
SELECT COUNT(canadian_viewers__millions_) FROM table_25640730_7 WHERE directed_by = "Yannick Bisson"
SELECT COUNT("canadian_viewers__millions_") FROM "table_25640730_7" WHERE "Yannick Bisson" = "directed_by"