Why “The Long Night” looked so dark

The third episode of season eight is the show's largest single production, and the complaint that followed it was not about the writing. Viewers could not see it. The episode was graded for a dark, high-contrast image on the assumption of a calibrated screen in a dark room, and most people watched on a television in a lit living room, over a compressed stream that turns dark gradients into blocks. Both things can be true at once: the photography is deliberate and legible in the intended conditions, and the delivery chain destroyed it for a large part of the audience. It is a useful case study in something that now affects every prestige production — the image that leaves the grading suite is not the image that arrives. Watch it in a dark room with the brightness up and the difference is not subtle.