It was improbable that it should matter that all 13 parts of the FX series "Lights Out" showed up in the mail in January—a splashily colored package with a picture of a battered boxer on the front cover that looked much like all splashy promotion covers for TV series destined for well-merited oblivion. As it turned out, it mattered all right—it was a gift—to have at hand episode after sterling episode of this unflagging drama of a former boxing champion looking for a comeback: a story whose reflection of current hard times colors every scene. And in this coloration there is nothing splashy—only faint but nonetheless haunting...