Home theater, also called home cinema, seeks to reproduce cinema quality video and audio in the home. The video aspect usually involves a large-screen and/or high definition television or a projection system with movie screen to project the image on. Quality audio reproduction is usually achieved with a high fidelity surround sound system.
Technically, a home theater could be as basic as a simple arrangement of a TV, DVD, and a set of speakers. It is therefore difficult to specify exactly what distinguishes a "home theater" from a "television and stereo". Most people in the consumer electronics industry would agree that a "home theater" is really the integration of a relatively high-quality video source with multi channel electronics and speakers.
Even if households have the system set up for home theater it is common only to use the speakers integrated within the television rather than to play the sound through the surround sound system. This is because surround sound loses its impact with material which is not recorded in a way suitable for surround sound. Films, drama and sport tend to be optimised for surround sound whereas news and daytime TV provide no particular advantage.
Some home theater enthusiasts go so far as to build a dedicated room in the home for the theater. Such a room is often decorated to resemble an actual cinema, with projection enclosed in a projection booth, specialized furniture, a piano or theater organ, curtains in front of the projection screen or movie posters. These more advanced installations often include sophisticated acoustic design elements, including "room-in-a-room" construction that isolates sound and provides the potential for a nearly ideal listening environment. These installations are often designated as "screening rooms" to differentiate from simpler installations.
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