Thursday`s TV highlights: `Nightflyers` on Syfy
(LA Times Auto Racing)

SERIES Supernatural Sam and Dean (Jared Padalecki, Jensen Ackles) enlist the help of Garth (DJ Qualls) to get inside information on what Michael (Christian Keyes) is planning in this new episode. 8 p.m. KTLA Jersey Shore: Family Vacation The unscripted series ends its season 8 p.m., MTV. An `After...