A system includes a passive cable splitter and an ultra wideband adapter located at a customer premises. The back light device in the liquid crystal display module includes a liquid crystal display, a reflecting plate laminated sheet by sheet on a bottom of the liquid crystal display, one or more lamps installed on one end of the reflecting plate, and a controller for controlling light emission of the installed lamps. The second method provides an increased coupling coefficient for a pulse type transformer with a magnetic core that utilizes a non-uniform cross-sectional area along the magnetic path where the cross-sectional area is increased within the primary and secondary windings. A request for metadata associated with the particular content is generated, if the local metadata is insufficient.