CREATE TABLE table_74064 ("Total #" FLOAT, "Episode #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

How many different episode numbers does the episode written by Sheri Elwood and directed by Jim Allodi have?
SELECT COUNT("Total #") FROM table_74064 WHERE "Written by" = 'Sheri Elwood' AND "Directed by" = 'Jim Allodi'
SELECT COUNT("Total #") FROM "table_74064" WHERE "Directed by" = 'Jim Allodi' AND "Written by" = 'Sheri Elwood'