Since the start of Television there has been a lot of progress and from the black and white TV's to todays LCD HD Flatscreen TV's.
TV's History
Through time outstanding things have happened in TV from 1928-2011. From Baird Model C to days Parasonic, Sony , LG there has been a tremendous amount of change in the TV history. As TV started in black and white then developed into colour and now there is a variety of different Screen effects such as HD, LCD,LED,Active Shutter,Passive, Active,Smart, AV, 2D, 3D, 4D and a lot more. These TV effects resemble how much TV has change and the images above also elaborate TV effects.
3D Television
We see depth when images from our left and right eyes merge into one; to re-create that in high-def, TVs must refresh the picture at least 120 times a second with alternating frames for the left and right eye, which tricks your brain into seeing only one image. Most new TVs are fast enough to do this, but to be 3-D-capable, TVs must include a converter chip and software to break down the signal and separate the left and right images. An infrared or radio beam syncs shutter glasses [below] with the screen to produce the final 3-D effect. In my opinion I would'nt buy 3D tv because I'm happy with HD and from my seeings the prices of 3D TV's is not satisfactory. Alongside this there isnt many 3D channels or channels where you can use 3D.
Anaglyph images
Are used to provide a stereoscopic 3D effect, when viewed with glasses where the two lenses are different (usually chromatically opposite) colors, such as red and cyan. Images are made up of two color layers, superimposed, but offset with respect to each other to produce a depth effect. Usually the main subject is in the center, while the foreground and background are shifted laterally in opposite directions. The picture contains two differently filtered colored images, one for each eye. When viewed through the "color coded" "anaglyph glasses", they reveal an integrated stereoscopic image. The visual cortex of the brain fuses this into perception of a three dimensional scene or composition.
Create the illusion of three-dimensional images by restricting the light that reaches each eye, an example of stereoscopy which exploits the polarization of light.
To present a stereoscopic motion picture, two images are projected superimposed onto the same screen through different polarizing filters. The viewer wears low-cost eyeglasses which contain a pair of different polarizing filters. As each filter passes only that light which is similarly polarized and blocks the light polarized in the opposite direction, each eye sees a different image. This is used to produce a three-dimensional effect by projecting the same scene into both eyes, but depicted from slightly different perspectives. Several people can view the stereoscopic images at the same time.
Alternate Framing Sequencing
The movie is filmed with two cameras like most other 3-D films. Then the images are placed into a single strip of film in alternating order. In other words, there is the first left-eye image, then the corresponding right-eye image, then the next left-eye image, followed by the corresponding right-eye image and so on.The film is then run at 48 frames-per-second instead of the traditional 24 frames-per-second. The audience wears very specialized LCD shutter glasses that have lenses that can open and close in rapid succession. The glasses also contain special radio receivers. The projection system has a transmitter that tells the glasses which eye to have open. The glasses switch eyes as the different frames come on the screen.
A head-mounted display or helmet mounted display, both abbreviated HMD, is a display device, worn on the head or as part of a helmet, that has a small display optic in front of one (monocular HMD) or each eye (binocular HMD).
Satellite television
Satellite is television programming delivered by the means of communications satellite and received by an outdoor antenna, usually a parabolic mirror generally referred to as a satellite dish, and as far as household usage is concerned, a satellite receiver either in the form of an external set-top box or a satellite tuner module built into a TV set. Satellite TV tuners are also available as a card or a USB stick to be attached to a personal computer. In many areas of the world satellite television provides a wide range of channels and services, often to areas that are not serviced by terrestrial or cable providers. In my opinion Satellite Television is something spectacular. Satellite TV is controlled mainly by Sky and is the leadering TV conglomeraete.
Cable TV
Cable television is a system of providing television programs to consumers via radio frequency (RF) signals transmitted to televisions through coaxial cables or digital light pulses through fixed optical fibers located on the subscriber's property, much like the over-the-air method used in traditional broadcast television (via radio waves) in which a television antenna is required. FM radio programming, high-speed Internet, telephony, and similar non-television services may also be provided. The major difference is the change of radio frequency signals used and optical connections to the subscriber property. In my opinion a clearer screen is better and the way cable TV works is something of my interest as it does get any signal interferences.
Analog TV
Analog (or analogue) television is the analog transmission that involves the broadcasting of encoded analog audio and analog video signal: one in which the message conveyed by the broadcast signal is a function of deliberate variations in the amplitude and/or frequency of the signal. All broadcast television systems preceding digital transmission of digital television (DTV) were systems utilizing analog signals. Analog television may be wireless or can require copper wire used by cable converters.
Digital TV
Digital television (DTV) is the transmission of audio and video by digital signals, in contrast to the analog signals used by analog TV. Many countries are replacing broadcast analog television with digital television to allow other uses of the television radio spectrum.
Interactive television
Interactive television represents a continuum from low interactivity (TV on/off, volume, changing channels) to moderate interactivity (simple movies on demand without player controls) and high interactivity in which, for example, an audience member affects the program being watched. The most obvious example of this would be any kind of real-time voting on the screen, in which audience votes create decisions that are reflected in how the show continues. A return path to the program provider is not necessary to have an interactive program experience. Once a movie is downloaded for example, controls may all be local. The link was needed to download the program, but texts and software which can be executed locally at the set-top box or IRD (Integrated Receiver Decoder) may occur automatically, once the viewer enters the channel.
High Definition TV
Most simply, a high-definition television system is able to offer a clearer and more detailed picture than any existing broadcast system, because it contains more picture information. All television signals, whether analogue or digital, are made up of many dots or picture elements (pixels) that form the image you see, so by using more of these pixels in a high-definition (HD) transmission a better image can be produced.
Streaming Media
Internet TV
Internet television (otherwise known as Internet TV, or Online TV) is the digital distribution of television content via the Internet. It should not be confused with Web television - short programs or videos created by a wide variety of companies and individuals, or Internet protocol television (IPTV) - an emerging internet technology standard for use by television broadcasters. Some Internet television is known as catch-up TV. Internet Television is a general term that covers the delivery of television shows and other video content over the internet, typically by major traditional television broadcasters. It does not describe a technology used to deliver content.
Pay-per-view
Pay-per-view (PPV) provides a service by which a television audience can purchase events to view via private telecast. The broadcaster shows the event at the same time to everyone ordering it (as opposed to video-on-demand systems, which allow viewers to see recorded broadcasts at any time). Events can be purchased using an on-screen guide, an automated telephone system, or through a live customer service representative. Events often include feature films, sporting events and entertainment. In my opinion Pay-per-view is a really good idea but on the cost side of things I dont think pay-per-view depicts as much reputation as it should and how many people use the product.
Computer-generated imagery
Computer-generated imagery (CGI) is the application of the field of computer graphics or, more specifically, 3D computer graphics to special effects in art, video games, films, television programs, commercials, simulators and simulation generally, and printed media. The visual scenes may be either dynamic or static.The term computer animation refers to dynamic CGI rendered as a movie. The term virtual world refers to agent-based, interactive environments.
3D computer graphics software is used to make computer-generated imagery for movies, etc. Recent availability of CGI software and increased computer speeds have allowed individual artists and small companies to produce professional-grade films, games, and fine art from their home computers. This has brought about an Internet subculture with its own set of global celebrities, clichés, and technical vocabulary. My view on CGI is that it has had a lot of progress in the TV industry and in my opinion its success in still exceeding. In my opinion I think that CGI adds supreem quality to some films but detracts to some of them. For example good storylines with good CGI get great success but films with not as much CGI in the storyline makes the film not get as much popularity in this bussiness.
