CREATE TABLE table_26824484_1 (original_air_date VARCHAR2, directed_by VARCHAR2)

What was the original air date of the episode that was directed by Jessica Landaw?
SELECT original_air_date FROM table_26824484_1 WHERE directed_by = "Jessica Landaw"
SELECT "original_air_date" FROM "table_26824484_1" WHERE "Jessica Landaw" = "directed_by"