Don’t touch that dial — Halloween scares on the way

it will bring the chilling “Castle Rock” back for Season 2 on Wednesday. Based on characters, places and themes of Stephen King, the psychological horror series stars Lizzy Caplan and Tim Robbins.

Shudder will continue with its spooktacular “Creepshow.” The anthology series that promises everything from werewolves to goblins with bad intentions will feature two new tales on Thursday, “The Companion” and “Lydia Layne’s Better Half” starring Tricia Hefler. These can be seen via streaming or on demand.

On Sundance/ Now, you will find “A Discovery of Witches,” the tale of modern love in a world populated by witches, demons and vampires who hide in plain sight among unsuspecting humans.

But enough of fiction — how about a real ghost hunt? A&E has its two-hour special “World’s Biggest Ghost Hunt: Pennhurst Asylum,” premiering at 8 p.m. Oct. 30.

In its day, the Pennsylvania asylum accommodated more than 10,000 patients, many of them children. Five brave souls will incarcerate themselves among the walls of the fabled sanatorium for two weeks to document reports of hyper-paranormal activity.

The Travel Channel finds filmmakeradventurer Dakota Laden, his sister and his best friend trekking to abandoned (and haunted?) locations where they must spend the night on the new series, “Destination Fear” at 10 p.m. Oct. 26.

The premiere episode finds them camping out at Brushy Mountain State Penitentiary in Petros, Tennessee, known as the “Alcatraz of the South.” Will they emerge unscathed?