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LG Electronics smart TV from 2011. A smart TV, also known as a TV (CTV), is a traditional television set with integrated Internet and interactive Web 2.0 features that allow users to stream music and videos, browse the internet, and view photos. Smart TVs are a technological convergence of computers, televisions, and digital media players.
The elements of a simple broadcast television system are: . An image source. This is the electrical signal that represents a visual image, and may be derived from a professional video camera in the case of live television, a video tape recorder for playback of recorded images, or telecine with a flying spot scanner for the transfer of motion pictures to video).
2023 saw the release of wireless TVs which connect to other devices solely through a transmitter box with an antenna that transmits information wirelessly to the TV. [48] Demos of transparent TVs have also been made. [49] There are TVs that are offered to users for free, but are paid for by showing ads to users and collecting user data. [50]
The sound bar utilizes analysis of a room's reflective characteristics to enable a single-unit 5.1.4 setup. [47] On May 17, 2021, Apple Music announced the addition of spatial audio with support for Dolby Atmos and lossless audio. [48] The feature was introduced to Apple Music users on Apple devices starting from June 7, 2021. [49]
Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission. Television is a mass medium for advertising, entertainment, news, and sports.
A cathode-ray tube (CRT) television displays an image by scanning a beam of electrons across the screen in a pattern of horizontal lines known as a raster. At the end of each line, the beam returns to the start of the next line; at the end of the last line, the beam returns to the beginning of the first line at the top of the screen.
With digital television, because of the cliff effect, reception of the digital signal must be very nearly complete; otherwise, neither audio nor video will be usable. Analog TV began with monophonic sound and later developed multichannel television sound with two independent audio signal channels.
The first-known home cinema system was designed, built and installed by Steve J. LaFontaine as a sales tool at Kirshmans furniture store in Metairie, Louisiana in 1974. He built a special sound room that incorporated the earliest quadraphonic audio systems, and he modified Sony Trinitron televisions for projecting the image. Many systems were ...
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