Inside Weekend TV: Hallmark Channel's movie-length Good Witch: Curse From a Rose (Saturday, 8/7c) marks the first Halloween for title spellbinder Cassie (Catherine Bell) and Sam (James Denton) as a married couple. Their celebration at Middleton's Fall Fair could be disrupted by the arrival of Autumn (Lolita Davidovich), Cassie's resentful college roommate…