Matthew Gilbert’s notes on the weekend’s TV offerings, including “Jay and Silent Bob Go Down Under” on Friday at 10 p.m. on Epix; “Homeland” on Sunday at 10 p.m. on Showtime; “Wives With Knives” on Friday at 10 p.m. on ID; “Lightmares” on Friday at 8 p.m. on HGTV; and “Haunted Encounters: Face to Face” on Friday at 10 p.m. on Biography.
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