CREATE TABLE table_25923164_1 (original_air_date VARCHAR, directed_by VARCHAR)

What was the original air date of the episode directed by frederick e. o. toye?
SELECT original_air_date FROM table_25923164_1 WHERE directed_by = "Frederick E. O. Toye"
SELECT "original_air_date" FROM "table_25923164_1" WHERE "Frederick E. O. Toye" = "directed_by"