CREATE TABLE table_28259 ("No." FLOAT, "#" FLOAT, "Title" CLOB, "Director" CLOB, "Writer ( s ) " CLOB, "Original air date" CLOB, "Prod. code" FLOAT, "U.S. viewers  ( million ) " CLOB)

What is the original air date for the episode directed by kevin dowling?
SELECT "Original air date" FROM table_28259 WHERE "Director" = 'Kevin Dowling'
SELECT "Original air date" FROM "table_28259" WHERE "Director" = 'Kevin Dowling'