CREATE TABLE table_name_73 (airing_date VARCHAR, number_of_episodes VARCHAR, genre VARCHAR)

What was the airing date when the number of episodes was larger than 20 and had the genre of costume action?
SELECT airing_date FROM table_name_73 WHERE number_of_episodes > 20 AND genre = "costume action"
SELECT "airing_date" FROM "table_name_73" WHERE "costume action" = "genre" AND "number_of_episodes" > 20