The biggest difference is perhaps on the way the signal is sent to the individual TV set. Cable, as what the name implies, transmits signals through cable lines connected to the TV through cable boxes. Satellite television, on the other hand, will need a portable satellite dish installed outside the customer’s home or office with a scrambler or receiver used to detect and decode signals and transfer them to the TV set.

Cable TV may be cheaper per month and quicker to install as there is no need to buy the satellite dish and install it. Satellite TV is more expensive per month on average, but it can well compensate the cost by more channels and various options like high-definition reception and quality sound.

The difference stays there, actually. In terms of picture quality, subscription cost and programming, each kind boasts of its own merits. Satellite TV may be sensitive to the weather, but so does cable (which may even be affected easily by power outages on the operator’s side. You may have your TV on, but when the operator has no power, you get a blank on your screen). Both can fire up an array of channels depending on, well, how much customers are willing to pay.

The choice will boil down to the viewer, his preferences, behavior and budget. Those who live in places that are from the usual cable line tracks may opt for satellite television. Those who watch only a few channels may opt for the cheaper cable television, while those who can sit down and like to search hundreds of channels and would like to watch shows on a crisp high definition should definitely go satellite TV.

For cable TV fans, the difference in the monthly charges may be just a few ten dollars, but when counted by years this will translate to huge money. Satellite TV loyalists, however, will claim that having great TV is definitely worth paying the extra bucks.

However, nowadays, satellites are becoming more important in every persons lives.  Their uses are recognized through weather reports, television transmissions and even in telephone calls that people make daily. In several instances, satellites unnoticeably play importantly in the background.

Generally, any object that orbits another object is a satellite. Thus, the Moon of the Earth is considered as its satellite. Moreover, since the earth revolves around the sun, the earth is also considered as the sun’s satellite.

Those machines and devices that people place in the path orbiting the Earth or another world is called artificial satellites.

The first artificial satellite that was sent to space to orbit the Earth was from the Soviet Union. It was called Sputnik, I and was sent to space on October 4, 1957.

In 1962, the collaboration of NASA and UK sent the pioneering international satellite to space. It was called Ariel I. The man-made satellite was to investigate the environment of space. Ariel 1 had six instruments from UK on board to be able to perform the investigation successfully.

By 1967, Ariel 3 was launched. It was Britain, who built and designed the satellite. It was launched from California. Since then, UK has had a fictitious reputation as the world’s top makers of satellites for communications, science and navigation.

People wonder what could be inside a satellite.  Satellites come in different sizes and shapes. These different characteristics of satellites play different roles.

An example is a weather satellite. Weather satellites are helpful in predicting the weather. They help the meteorologists to see what is currently happening. Weather satellites have cameras in them that can bring back photos of the Earth’s weather. The views that can be generated can be from a polar orbit or from a fixed geostationary position.

Communication satellites are also examples of satellites that are unnoticeable used in our daily lives. Data and telephone conversations are transmitted through a satellite. The transponder is one of the most essential features of communication satellites.  A transponder is a radio that can receive a conversation at a frequency. It then amplifies the frequency, and it transmits it back to Earth on a different frequency.

Broadcast satellites helped people to watch our favorite daily programs on the television. Television signals are broadcasted from a different point to another by broadcast satellites. These satellites are actually similar to a communication satellite.

One of the most popular could be the scientific satellites. They perform different scientific missions. These satellites keep on looking at almost everything in space, from gamma rays to sun spots.

Navigational satellites are helpful to voyagers. They allow safe and successful navigation of planes and ships.

Rescue satellites are also existent. They respond to radio signals calling for help. When distress signals are sent out by radios and are captured by these rescue satellites, they respond for help.

There are also satellites that observe the earth always. These Earth-observation satellites provide information and data about the changes of the planet. These satellites provide record data about the Earth’s temperature, ice-sheet coverage and forestation.

Military satellites are also important. These satellites are stationed up in the sky but the information, how these data are gotten is too confidential for the common people.  High-tech machines and photographic-equipments that are sophisticated are the necessary equipments for these kinds of satellites.

Although these satellites may have significant differences, they do have quite a few things in common. For one, the satellites’ body is known as the bus. Its frame and body are made up of metal or is composite. The bus keeps everything in place when the satellite is launched. It is also strong enough to survive a powerful launch. All of these satellites must have a power source. Usually these sources could be solar cells or batteries.

Satellites have ACS or attitude-control-system. This mechanism maintains the satellite to point in the right direction.

Satellites have been proven to be helpful, thus more and more of their kinds are invested.

When the ancient people thought of trying to transmit pictures and images at long distances, they began to come up with magical stories of enchanted creatures; but now, the magic became a reality. People around the globe are enjoying this magical box.

With the advancement of science and technology in the era of mass media, TV played a significant role in our everyday life.  Television became the number one source of information, education, entertainment, and news, which enables people around the world to get updated to everyday happenings.

One can hardly find a household without a television set as it becomes a necessary commodity. One good television separates the rich from the poor; thus, it became a status symbol.

Today, different types of TV are available in our friendly neighborhood appliance mart. These ranges from the conventional Air TV, digital TV, HDTV, cable-ready TV, closed-circuit TV and satellite TV. We also have the various technology-enhanced monitor TVs such as CRT, DLP, Plasma, LCD, Flat screen and the latest – LED.

Cathode Ray Tube (CRT) TV or the Tube TV, which has been recognized as the direct view TV, is the simplest and basic kind of television in the market. It is called tube TV because it uses a vacuum tube which is dedicated – CRT. Today, latest CRT TVs are the Sanyo Slim CRT TV, Samsung Slim TV, and LG Ultra Slim TV. This new CRT TV has the quality and characteristics of an LCD TV but 50% off its price.

DLP TVs are the televisions invented by Texas instrument using the technology called Digital Light Processing. Now available in the market is the Samsung HLR5688W 1080p DLP TV, which is dubbed as the Largest DLP TV with its 67” screen.

Plasma TVs are televisions associated for high-class home appliances. These are mostly based on the Plasma Display Panel Technology. These TVs produce better black images than the LCD TV. One known Plasma TV is the Panasonic Plasma TV TH-103PZ600 – dubbed as the largest plasma TV with 103” screen.

Liquid Crystal Display (LCD) TV is a recent technology. The most famous is the Flat Panel LCD TV because of its design that is thin and lightweight in comparison to the rear projection TV. Prominent LCD TVs nowadays are the Sony BRAVIA LCD Technology and the Samsung LCD Series TV.

The latest innovation in television technology today is the Samsung LED TV. It is actually an LCD TV that uses Light Emitting Diode (LED) Backlighting. Other manufacturers such as LG, Toshiba, and Philips also have their own version of the LED TV.

Now that you have the TV, all you need is the programming or the broadcasting type. It could be Air TV, cable TV or even Satellite TV.

Air television is the cheapest but the worst kind of TV programming because it has limited channels and are not popular; it don’t even have good reception and needs a big antenna.

Cable TV is operated by providers having channels of up to 70. This caters to a lot of choices than Air TV and the reception is better. This basically uses a cable to be connected to the TV set and a decoder for the channels.

The most expensive is the satellite television. Obviously, it utilizes the satellite in the atmosphere to get the desired programs and channels. Subscribers only have to buy the satellite disk or receiver from the providers. The subscription can either be prepaid or postpaid just like with cable TV. Reception and quality of the channels are much better with this kind of broadcasting.

There are a lot of choices and combinations to choose from; but before rushing to that appliance center door to buy your dream television, you must consider a lot of things prior to clicking that remote control. Factors like price, purpose, features, where to purchase, and the size and weight of the TV depending on your place are to be considered.