The number 1080 stands for 1080 lines of vertical resolution, while the letter i stands for interlaced or non-progressive scan.

The number 1080 stands for 1080 lines of vertical resolution[1], while the letter p stands for progressive scan or non-interlaced.

In signal processing, a comb filter adds a slightly delayed version of a signal to itself, causing phase cancellations. The frequency response of a comb filter consists of a series of regularly-spaced spikes, so that it looks like a comb.

The p stands for progressive scan, i.e. non-interlaced, while the 480 denotes a vertical resolution of 480 lines.

The number 720 stands for 720 lines of vertical resolution, while the letter p stands for progressive scan or non-interlaced.

8-VSB is the 8-level vestigial sideband modulation method adopted for terrestrial broadcast of the ATSC digital television standard in the United States and Canada.  It is the RF modulation format utilized by the DTV (ATSC) digital television standard to transmit digital bits over the airwaves to the home consumer.

Analog video signals (also called components) must provide red, green and blue signals to create a television image. The simplest type, RGB, consists of the three discrete red, green and blue signals sent down three coaxial cables. There are a number of schemes which vary according to how synchronization is handled. If a synchronisation signal is sent on the green channel, it is called sync-on-green.

Today's TV system using radio frequency waves to transmit and display pictures and sound.Today's TV system using radio frequency waves to transmit and display pictures and sound...

The Advanced Television Systems Committee (ATSC) is the group that helped to develop the new digital television standard for the United States, also adopted by Canada, Mexico, and South Korea and being considered by other countries. It is intended to replace the NTSC system and produce wide screen 16:9 images up to 1920_1080 pixels in size-more than six times the display resolution of the earlier standard. However, a host of different image sizes are supported, so up to six standard-definition "virtual channels" can be carried in a single broadcast. ATSC also boasts "theater quality" audio because it uses the Dolby Digital (AC-3) format to provide "5.1" surround sound. Numerous auxiliary data services can also be provided.

Closed captioning (CC) allows deaf and hard of hearing / hearing-impaired people, people learning English as an additional language, people first learning how to read, people in a noisy environment, and others to read a transcript or dialogue of the audio portion of a video, film, or other presentation. As the video plays, text captions are displayed that transcribe, although not always verbatim, what is said and by whom and indicate other relevant sounds.

The NTSC and PAL TV norms call for a compliant TV screen to display an electrically "black-and-white" signal (minimal color saturation) at a color temperature of 6500K. On many actual sets however, especially older and/or cheaper ones, there is a very noticeable deviation from this requirement of the standard.

Most video and digital still cameras can adjust for color temperature by zooming into a white object and setting the white balance (telling the camera "this object is white"); the camera then shows true white as white and adjusts all the other colors accordingly. White-balancing is necessary especially indoors under fluorescent lighting and when moving the camera from one lighting situation to another. The setting called "Auto white balance" is not recommended for optimum quality video or stills.

The contrast ratio is a metric of a display system, defined as the ratio of the luminosity of the brightest and the darkest color the system is capable of producing. High contrast ratio is a desired aspect of any display, but with the various methods of measurement for a system or its part, remarkably different values can be measured of the same subject.

Composite video is the format of an analog television (picture only) signal before it is combined with a sound signal and modulated onto an RF carrier. It is usually in a standard format such as NTSC, PAL, or SECAM. It is a composite of three source signals called Y, U and V (together referred to as YUV) with sync pulses. Y represents the brightness or luminance of the picture and includes synchronizing pulses, so that by itself it could be displayed as a monochrome picture. U and V between them carry the colour information. They are first mixed with two orthogonal phases of a colour carrier signal to form a signal called the chrominance. Y and UV are then added together. Since Y is a baseband signal and UV has been mixed with a carrier, this addition is equivalent to frequency-division multiplexing.

DCDi (Directional Correlation Deinterlacing) is a digital enhancement method developed by Faroudja in 1996. DCDi technology is primarily used for improving the image quality of low resolution images. This is done by deinterlacing the image and blending rough edges occurring in diagonal lines. The technique is often used in LCD and plasma television sets. DCDi technology is also present in the Sage FLI2200 chip, which is used in many DVD players.

The digital component video is sometimes referred to as 4:2:2. This means that for every 4 pixels of luminance (Y) information, only 2 pixels of Pb (Blue Difference), and 2 pixels of Pr (Red difference) are encoded. This is the scheme used for the DVD format. The numbers also represent the relative number of bits (but not the actual number) used to carry the three pieces of information at each pixel. The colour information is spread across the pixels it represents

Television delivered and displayed using radio frequency waves that contain information that is digitally encoded for improved quality and efficiency.

The Digital Visual Interface (DVI) is a video interface standard designed to maximize the visual quality of digital display devices such as flat panel LCD computer displays and digital projectors. It was developed by an industry consortium, the Digital Display Working Group (DDWG).

High-Definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. Except for early analog formats in Europe and Japan, HDTV is broadcast digitally, and therefore its introduction sometimes coincides with the introduction of digital television (DTV): this technology was first introduced in the USA during the 1990s, by the Digital HDTV Grand Alliance (grouping together AT&T, General Instrument, MIT, Philips, Sarnoff, Thomson, and Zenith)[1].
HDTV is defined as 1080 active lines, 16 : 9 aspect ratio in ITU-R BT.709. However, in the ATSC broadcast standard used in the United States and other countries, any ATSC resolution with 720 or more active lines is considered HDTV.

High-Bandwidth Digital Content Protection (HDCP) is a form of digital rights management (DRM) developed by the Intel Corporation to control digital audio and video content as it travels across Digital Visual Interface (DVI) or High Definition Multimedia Interface (HDMI) connections. The HDCP specification is proprietary and an implementation of HDCP requires a license.

The High-Definition Multimedia Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface.

MPEG-2 is typically used to encode audio and video for broadcast signals, including direct broadcast satellite and Cable TV. MPEG-2, with some modifications, is also the coding format used by standard commercial DVD movies.

NTSC is the analog television system in use in Korea, Japan, United States, Canada and certain other places, mostly in the Americas. It is named for the National Television System(s) Committee, the industry-wide standardization body that created it.

PiP allows you to watch more than one TV program (channel) at the same time on television sets. With the PiP feature of TV, the main program will be displayed on the TV screen, and another program or programs will be displayed overlapping the main program.

PoP allows you to watch more than one TV program (channel) at the same time on television sets. With the PoP feature of TV, one program will be displayed one part of the TV screen, and another program or programs will be displayed in another portion of the on the screen, with no overlapping of picture.

Progressive or non-interlaced scanning is any method for displaying, storing or transmitting moving images in which the lines of each frame are drawn in sequence.

Quadrature amplitude modulation (QAM) is a modulation scheme which conveys data by changing (modulating) the amplitude of two carrier waves. These two waves, usually sinusoids, are out of phase with each other by 90° and are thus called quadrature carriers - hence the name of the scheme.

applies to fixed-pixel-array displays such as flat-panel plasmas (PDPs), LCDs, front and rear projectors using LCD, DLP or similar technologies and is simply the physical number of columns and rows of pixels creating the display (eg, 852x480; 1368x768 etc).

The Sound Retrieval System (or SRS) is a patented psychoacoustic 3D audio processing technology originally invented by Arnold Klayman in the early 1980s. (The original SRS patents are US patents 4,866,774, 4,748,669, and 4,841,572, which expire in 2006 and 2008 depending on the patent. Patents may also apply in other countries.) The SRS technology applies head-related transfer functions (HRTFs) to create an immersive 3D soundfield using only two speakers, widening the "sweet spot," creating a more spacious sense of ambience, and producing strong localization cues for discrete instruments within an audio mix. SRS is not a Dolby matrix surround decoder but works with normal stereo recordings.

A Universal Remote is a Remote Control that can be programmed to operate various brands of one or more types of consumer electronics devices (i.e. TV, VCR, DVD, Cable/Satellite Box, etc.). Low end universal remotes can only control a set number of devices determine by their manufacturer while mid and high end universal remotes allow the user to program in new controls codes to the remote. Many remotes sold with various electronic devices these days include a universal remote capabilities for other types of devices to allow the remote to control other devices (of various brands) beyond the device it came with (i.e. A VCR remote that can be programmed to operate various brands of televisions).

V-chip is a generic term used for a feature of television receivers allowing the blocking of programs based on their ratings category. It is intended for use by parents to manage their children's television viewing. All 13-inch and larger televisions manufactured for the U.S. market since January 1, 2000 are required to have the V-chip technology.

A widescreen image is a film or television image with a wider aspect ratio than the standard Academy frame developed during the classical Hollywood cinema era.

YCbCr is a family of color spaces used in video systems. Y is the luma component and Cb and Cr the chroma components. It is often confused with the YUV color space, and typically the terms YCbCr and YUV are used interchangeably, leading to confusion. In fact, when referring to signals in digital form, the term "YUV" probably really means "YCbCr" more often than not. YCbCr is sometimes abbreviated to YCC.

YPbPr (also referred to as "YPrPb", "PrPbY", and "PbPrY") is a color space used in video electronics. It is numerically equivalent to the YCbCr color space, but is designed for use in analogue systems whereas YCbCr is intended for digital video.

Zoom is a method of zooming on a the television either by increasing the size of the pixels in the image or by interpolating between them. The image doesn't physically get any closer and no extra information is collected.