CREATE TABLE table_20859 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

How many directors were there in total for the episode with series #62?
SELECT COUNT("Directed by") FROM table_20859 WHERE "Series #" = '62'
SELECT COUNT("Directed by") FROM "table_20859" WHERE "Series #" = '62'