CREATE TABLE table_1493 ("No. in series" CLOB, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original airdate" CLOB, "Production code" CLOB)

What is the original air date for the episode written by Bob Goodman?
SELECT "Original airdate" FROM table_1493 WHERE "Written by" = 'Bob Goodman'
SELECT "Original airdate" FROM "table_1493" WHERE "Written by" = 'Bob Goodman'