Ключевые слова: audio visual, bars, broadcasting, buttons, color, colour, colour bars, control, control panel, control room, equipment, gallery, horizontal, knobs, large, large group of objects, media mixer, mixing, news, nobody, panel, professional, room, screen, selective, selective focus, studio, switcher, technology, television, television broadcasting, television studio, the media, tv, tv gallery, vertical, video, video switcher, video wall, vision, vision mixer, visual, wall,