CREATE TABLE table_74445 ("Series #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "France air date" TEXT, "Canadian air date" TEXT, "US air date" TEXT)

What is the canadian air date when the US air date is 24 august 2012?
SELECT "Canadian air date" FROM table_74445 WHERE "US air date" = '24 August 2012'
SELECT "Canadian air date" FROM "table_74445" WHERE "US air date" = '24 August 2012'