Ключевые слова: abstract, analog, background, black, blank, broadcast, broadcasting, broken, cable, cctv, channel, digital, display, effect, error, failure, grain, hd, hdtv, kinescope, monitor, no, no signal, noise, nosignal, offline, old, pixel, reception, screen, signal, snow, static, technology, television, texture, tuner, tv, video, vintage, wallpaper, waveform, weak, white,