“Nightmare Shark” (9 p.m., Syfy): You can count on Syfy for a thriller that is so


“Nightmare Shark” (9 p.m., Syfy): You can count on Syfy for a thriller that is so cheesy, and derivative, that it’s fun. In “Nightmare Shark,” a group of shark-attack survivors are hunted by a supernatural shark that haunts their dreams. The shark’s name must be Freddie.

TV listings, D3

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