Syfy’s sixth annual 31 Days of Halloween will unleash nearly 600 hours of bloodcurdling programming throughout the entire month of October, led by Halloween-themed episodes of Ghost Hunters (October 30) and Naked Vegas (October 29), a Scare Tactics marathon (October 28) and a trio of original horror movies including Zombie Night (October 26) starring Darryl Hannah, Anthony Michael Hall and “Mrs. Partridge,” Shirley Jones!