CREATE TABLE table_74065 ("Total #" FLOAT, "Episode #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

How many different episode numbers are there for the episodes directed by Sheri Elwood?
SELECT COUNT("Total #") FROM table_74065 WHERE "Directed by" = 'Sheri Elwood'
SELECT COUNT("Total #") FROM "table_74065" WHERE "Directed by" = 'Sheri Elwood'