CREATE TABLE table_79551 ("Title" TEXT, "Series" TEXT, "Director" TEXT, "Production Number" FLOAT, "Release date" TEXT)

What is the production number of From Hare to Heir?
SELECT SUM("Production Number") FROM table_79551 WHERE "Title" = 'from hare to heir'
SELECT SUM("Production Number") FROM "table_79551" WHERE "Title" = 'from hare to heir'