telecommunicationmedium used for transmitting sound with moving images
in monochrome( black-and-white), colour, or in three dimensions. It
can refer to a television set, a television program, or the medium of
television transmission. Television is a mass medium, for
entertainment, educational television, newsand advertising.
Television became available in crude experimental forms in the late
1920s. After World War II, an improved form became popular in the
United States and Britain, and television sets became commonplace in
homes, businesses, and institutions. During the 1950s, television was
the primary medium for influencing public opinion. [ 1 ]In the
mid-1960s, color broadcasting was introduced in the US and most other
developed countries. The availability of storage media such as VHStape
(1976), DVDs(1997), and high-definition Blu-ray Discs(2006) enabled
viewers to watch recorded material such as movies. At the end of the
first decade of the 2000s, digital televisiontransmissions greatly
increased in popularity. Another development was the move from
standard-definition television (SDTV)( 576i, with 576 interlacedlines
of resolution and 480i) to high-definition television (HDTV), which
provides a resolutionthat is substantially higher. HDTV may be
transmitted in various formats: 1080p, 1080iand 720p. Since 2010, with
the invention of smart television, Internet televisionhas increased
the availability of television programs and movies via the
Internetthrough services such as Netflix, iPlayer, Hulu, Rokuand
Chromecast.
