CREATE TABLE table_22327 ("No." FLOAT, "#" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Canadian air date" TEXT, "U.S. air date" TEXT, "Production code" FLOAT, "Canadian viewers  ( million ) " TEXT)

Which air dates have 1.229 canadian viewers (millions)?
SELECT "U.S. air date" FROM table_22327 WHERE "Canadian viewers (million)" = '1.229'
SELECT "U.S. air date" FROM "table_22327" WHERE "Canadian viewers (million)" = '1.229'