T elevision, sometimes shortened to TV or telly, is
a telecommunication medium used
for transmitting moving images in black-and-white or in colour,
and in two or three dimensions and sound. The term can refer
to a television set, a television show, or the medium
of television transmission. Television is a mass
medium for advertising, entertainment, news, and sports.
Television became available in crude experimental forms in the
late 1920s, but it would still be several years before the
new technology would be marketed to consumers. After World
War II, an improved form of black-and-white television
broadcasting became popular in the United
Kingdom and United States, 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, colour
broadcasting was introduced in the U.S. and most other
developed countries.
Television became available in crude experimental forms in the
late 1920s, but it would still be several years before the
new technology would be marketed to consumers. After World
War II, an improved form of black-and-white television
broadcasting became popular in the United
Kingdom and United States, 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 U.S. and most other
developed countries.
The availability of various types of archival storage media such
as Betamax and VHS tapes, high-capacity hard disk
drives, DVDs, flash drives, high-definition Blu-ray Discs, and
cloud digital video recorders has enabled viewers to watch pre-
recorded material—such as movies—at home on their own time
schedule. For many reasons, especially the convenience of
remote retrieval, the storage of television and video
programming now also occurs on the cloud (such as the video
on demand service by Netflix). At the end of the first decade of
the 2000s, digital television transmissions greatly increased in
popularity. Another development was the move from standard-
definition television (SDTV) (576i, with 576 interlaced lines of
resolution and 480i) to high-definition television (HDTV), which
provides a resolution that is substantially higher. HDTV may be
transmitted in different formats: 1080p, 1080i and 720p. Since
2010, with the invention of smart television, Internet
television has increased the availability of television programs
and movies via the Internet through streaming video services
such as Netflix, Amazon Prime Video, iPlayer and Hulu.
