CREATE TABLE table_65237 ("Title" TEXT, "Series" TEXT, "Characters" TEXT, "Production Num." FLOAT, "Release date" TEXT)

The film titled Bosko's fox hunt had what as the smallest production number?
SELECT MIN("Production Num.") FROM table_65237 WHERE "Title" = 'bosko''s fox hunt'
SELECT MIN("Production Num.") FROM "table_65237" WHERE "Title" = 'bosko\'s fox hunt'