17 Facts About TV


Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound.

FactSnippet No. 848,720

TV published an article on "Motion Pictures by Wireless" in 1913; transmitted moving silhouette images for witnesses in December 1923; and on 13 June 1925 publicly demonstrated synchronized transmission of silhouette pictures.

FactSnippet No. 848,721

TV managed to display simple geometric shapes onto the screen.

FactSnippet No. 848,722

TV's solution was a camera tube that accumulated and stored electrical charges within the tube throughout each scanning cycle.

FactSnippet No. 848,723

TV demonstrated the same system using monochrome signals to produce a 3D image .

FactSnippet No. 848,724

The new ATV standard allowed the new DTV signal to be based on entirely new design principles.

FactSnippet No. 848,725

IPTV is one of the emerging Internet television technology standards for use by television networks.

FactSnippet No. 848,726

The abbreviation CATV is sometimes used for cable television in the United States.

FactSnippet No. 848,727

Television set, called a television receiver, television, TV set, TV, or "telly", is a device that combines a tuner, display, an amplifier, and speakers for the purpose of viewing television and hearing its audio components.

FactSnippet No. 848,728

Major TV manufacturers announced the discontinuation of CRT, DLP, plasma and fluorescent-backlit LCDs by the mid-2010s.

FactSnippet No. 848,729

Low-definition television or LDTV refers to television systems that have a lower screen resolution than standard-definition television systems such 240p .

FactSnippet No. 848,730

The most common source of LDTV programming is the Internet, where mass distribution of higher-resolution video files could overwhelm computer servers and take too long to download.

FactSnippet No. 848,731

Standard-definition television or SDTV refers to two different resolutions: 576i, with 576 interlaced lines of resolution, derived from the European-developed PAL and SECAM systems; and 480i based on the American National Television System Committee NTSC system.

FactSnippet No. 848,732

SDTV is a television system that uses a resolution that is not considered to be either high-definition television or enhanced-definition television .

FactSnippet No. 848,733

In North America, digital SDTV is broadcast in the same 4:3 aspect ratio as NTSC signals with widescreen content being center cut.

FactSnippet No. 848,734

Some TV channels are partly funded from subscriptions; therefore, the signals are encrypted during broadcast to ensure that only the paying subscribers have access to the decryption codes to watch pay television or specialty channels.

FactSnippet No. 848,735

British Broadcasting Corporation's TV service carries no television advertising on its UK channels and is funded by an annual television licence paid by the occupiers of premises receiving live telecasts.

FactSnippet No. 848,736