TV Guide Syfy Monday

Yvette Fielding, medium Derek Acorah and the experts visit Pengersick Castle in Cornwall, said to be haunted by the ghosts of sailors and monks, in the hope of experiencing something out of the ordinary

Yvette Fielding and the team visit a supposedly haunted airfield housing the wreckage of two planes which crashed after being shot down during a bombing raid in East Kirkby, Lincolnshire, during the Second World War

A visiting Klingon officer admits to being a spy, sparking a witch-hunt for traitors among the Enterprise's crew. Patrick Stewart stars

Hoshi and Trip become infected with a mysterious virus that could leave them dead within hours, and Phlox discovers aliens have taken over their bodies to research human illness. Archer intervenes to try to save his crew members, and his bravery inspires the aliens to cure the deadly disease. Sci-fi drama, starring Linda Park, Connor Trinneer, John Billingsley and Scott Bakula

The crew must join forces with the Jem'Hadar soldiers to stop a group of renegades from gaining power - but also coerced into helping the Dominion destroy an alien transporter. Guest starring Jeffrey Combs

Reunited with an old friend from university, Connor encounters a deadly creature terrorising the docks and finds evidence of a fresh kill. Abby and Matt arrive to help catch the beast, leading to a tense chase through a container yard. Later, Connor hopes his brave efforts will be rewarded and returns to ARC to fight for his job. Andrew-Lee Potts, Hannah Spearritt and Ciaran McMenamin star

Matt inadvertently brings back a mysterious woman trying to escape through an anomaly ARC is investigating, but its sealing off means she has been left stranded - along with two undetected arboreal dinosaurs. Later, after Abby and Becker have managed to corner one of the deadly creatures in a theatre, Matt and the woman are forced to undergo a terrifying confrontation with the remaining beast. Hannah Spearritt, Ciaran McMenamin and Ruth Bradley star

O'Neill is knocked unconscious and replaced by an alien double while on a mission - leaving it up to his colleagues to notice the exchange before disaster strikes. Richard Dean Anderson stars

Hoshi and Trip become infected with a mysterious virus that could leave them dead within hours, and Phlox discovers aliens have taken over their bodies to research human illness. Archer intervenes to try to save his crew members, and his bravery inspires the aliens to cure the deadly disease. Sci-fi drama, starring Linda Park, Connor Trinneer, John Billingsley and Scott Bakula

As disturbing events in the world's oceans mount up, scientists realise that an unknown species could threaten humanity's fragile existence for ever. Sci-fi thriller, starring Alexander Karim, Cécile de France and Leonie Benesch

Reunited with an old friend from university, Connor encounters a deadly creature terrorising the docks and finds evidence of a fresh kill. Abby and Matt arrive to help catch the beast, leading to a tense chase through a container yard. Later, Connor hopes his brave efforts will be rewarded and returns to ARC to fight for his job. Andrew-Lee Potts, Hannah Spearritt and Ciaran McMenamin star

Matt inadvertently brings back a mysterious woman trying to escape through an anomaly ARC is investigating, but its sealing off means she has been left stranded - along with two undetected arboreal dinosaurs. Later, after Abby and Becker have managed to corner one of the deadly creatures in a theatre, Matt and the woman are forced to undergo a terrifying confrontation with the remaining beast. Hannah Spearritt, Ciaran McMenamin and Ruth Bradley star

Western drama, starring Melanie Scrofano as the great-great-granddaughter of Wyatt Earp, who inherits his mythic abilities, his famous gun and his old enemies - demons. In the opening episode, Wynonna returns to her home town, only to find it overrun with the ghosts of the criminals Wyatt himself once dispatched