CREATE TABLE table_2587 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" TEXT)

If the original air date January 19, 1992, who was the episode directed by?
SELECT "Directed by" FROM table_2587 WHERE "Original air date" = 'January 19, 1992'
SELECT "Directed by" FROM "table_2587" WHERE "Original air date" = 'January 19, 1992'