LOST - "Orientation" - Jack, Locke and Kate learn more secrets about the hatch. Meanwhile, after being beaten and taken captive, Sawyer, Michael and Jin wonder if their captors are fellow survivors or the dreaded "Others." Katey Sagal guest stars, on "Lost," WEDNESDAY, OCTOBER 5 (9:00-10:00 p.m., ET), on the ABC Television Network. (ABC/MARIO PEREZ) HAROLD PERRINEAU, JOSH HOLLOWAY