The Travel Channel HD (Pacific) A house terrorized by an ancient, demonic force. 2026-06-13 Investigating a 730-year-old Leap Castle and the home of the Irish Hell-Fire Club. 2026-06-13 Investigating dark energy at Yuma Territorial Prison. 2026-06-13 Investigating a Satanic ritual site in the Arizona desert. 2026-06-13 Investigating the Nevada State Prison in Carson City. 2026-06-13 Re-opening an investigation at the Winchester Mystery House in San Jose, Calif. 2026-06-14