CREATE TABLE table_30370 ("No. in series" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" FLOAT)

When did the episode titled 'Bad dreams' air for the first time?
SELECT "Original air date" FROM table_30370 WHERE "Title" = 'Bad Dreams'
SELECT "Original air date" FROM "table_30370" WHERE "Title" = 'Bad Dreams'