It’s that time of year again. Syfy has set the lineup for its 31 Days of Halloween annual October spook-a-thon. Among the highlights: The six-episode first installment of Syfy's original anthology series Channel Zero: Candle Cove premieres Tuesday, October 11 at 9/8c. It’s based on an unnerving tale written by Kris Straub that gained notoriety online as a popular "creepypasta" (user-generated horror stories that are published and passed around the internet). The…