CREATE TABLE table_29124 ("No." FLOAT, "#" FLOAT, "Title" CLOB, "Directed by" CLOB, "Story by" CLOB, "Teleplay by" CLOB, "Original air date" CLOB, "U.S. viewers  ( millions ) " CLOB)

What is the date the episode directed by rob bailey aired?
SELECT "Original air date" FROM table_29124 WHERE "Directed by" = 'Rob Bailey'
SELECT "Original air date" FROM "table_29124" WHERE "Directed by" = 'Rob Bailey'