The definition on a television is a “medium
for transmitting and receiving moving images, either monochromic or
color, usually accompanied by sound” (personal). Televisions are
used all around the world and are very popular in America. They are
used for communication receivers and in many other ways, but mainly
entertainment. In the United States alone, there are 220 million TVs
(personal). Out of all of the countries around the world, Americans
watch the most TV. We watch on average more than eight hours a day.
Most other countries watch around three hours (International).
They have made great advances from back when the first TVs were made in
the 1930’s (personal). They have changed in ways such as the
outer box, size, screen, price, and usage.
Television broadcasts mocked radio broad casts that
were used in the 1920’s. These TVs had “high power
frequency transmitters to broadcast the television signal to individual
TV receivers (personal).” From 1948, when the commercial TVs were
sold for $2,495, we have come a long way (How) In stores today there
are TVs available starting at below one hundred dollar. More complex
and better TVs can sell in that range of $2, 495. In 1954, TVs went
from black and white, to color. Another change that was seen was the
change in shape. It went for a “vacuum tub chassis,” to a
“more solid state component” (personal). Devices were
created to make viewing televisions more pleasurable than it was
previously. In 1970, the VCR was created and this made viewing movies
in the comfort of one’s own home more prevalent. Though
1970-1980, antennas and cable boxes were used more frequently. These
gave more channels available. In the early 2000s, analog signal
switched to digital signal. After that, High Definition Television
became common as well (personal). .
High Definition Television (HDTV) was first created
in 1981. HDTV is different from digital TV in which it carries more
pixels. HDTV carries instructions that have 2 million pixels. The
picture in HDTV is better than regular TVs. What is also used in HDTV
is LED and LCD technology. The LED lights are used to have high quality
picture by adjusting the brightness and the contrast. These TVs are
also very thin (personal).
In the past 80 years, we have seen many changes. As
the years go on, there will be more advances in television technology
that we have to look forward to. We will see changes in the way TVs are
used, quality, and other aspects.
How Much Has TV Changed Since 1926? A Lot. Sterling Salalive.29 Nov
International Telecommunication Union, “Who Watches Most
Television.” The Economist. 23 Sept 2009. Web. 12 Dec 2010.