CREATE TABLE table_20858 ("Series #" FLOAT, "Season #" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB)

Who was the director for the episode in season #50?
SELECT "Directed by" FROM table_20858 WHERE "Series #" = '50'
SELECT "Directed by" FROM "table_20858" WHERE "Series #" = '50'