CREATE TABLE table_52502 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Original air date" TEXT, "Production code" TEXT)

Who directed the show with the production code k2708?
SELECT "Directed by" FROM table_52502 WHERE "Production code" = 'k2708'
SELECT "Directed by" FROM "table_52502" WHERE "Production code" = 'k2708'