CREATE TABLE table_73006 ("No. overall" FLOAT, "Title" TEXT, "Director" TEXT, "Writer" TEXT, "Original air date" TEXT, "Production code" FLOAT)

When did the episode first air that had a production code of 102?
SELECT "Original air date" FROM table_73006 WHERE "Production code" = '102'
SELECT "Original air date" FROM "table_73006" WHERE "Production code" = '102'