Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables. This contrasts with broadcast television, in which the television signal is transmitted over-the-air by radio waves and received by a television antenna attached to the television; or satellite television, in which the television signal is transmitted over-the-air by radio waves from a communications satellite orbiting the Earth, and received by a satellite dish antenna on the roof. FM radio programming, high-speed Internet, telephone services, and similar non-television services may also be provided through these cables. Analog television was standard in the 20th century, but since the 2000s, cable systems have been upgraded to digital cable operation.
The National Broadcasting Company (NBC) is an American commercial broadcast television and radio network serving as the flagship property of the NBC Entertainment division of NBCUniversal, a subsidiary of Comcast. The headquarters of NBC is in New York City at the Comcast Building. NBC also has offices in Chicago at the NBC Tower.
Advanced Television Systems Committee (ATSC) standards are an International set of standards for broadcast and digital television transmission over terrestrial, cable and satellite networks. It is largely a replacement for the analog NTSC standard and, like that standard, is used mostly in the United States, Mexico, Canada, South Korea and Trinidad & Tobago. Several former NTSC users, such as Japan, have not used ATSC during their digital television transition, because they adopted other systems such as ISDB developed by Japan, and DVB developed in Europe, for example.
Digital cable is the distribution of cable television using digital data and video compression. The technology was first developed by General Instrument. By 2000, most cable companies offered digital features, eventually replacing their previous analog-based cable by the mid 2010s. During the late 2000s, broadcast television converted to the digital HDTV standard, which was incompatible with existing analog cable systems.
WRAL-TV is a television station licensed to Raleigh, North Carolina, United States, serving as the NBC affiliate for the Research Triangle area. It is the flagship station of the locally based Capitol Broadcasting Company, which has owned the station since its inception.
The All-Channel Receiver Act of 1962 (ACRA), commonly known as the All-Channels Act, was passed by the United States Congress in 1961, to allow the Federal Communications Commission to require that all television set manufacturers must include UHF tuners, so that new UHF-band TV stations could be received by the public. This was a problem at the time since most affiliated stations of the Big Three television networks were well-established on VHF, while many local-only stations on UHF were struggling for survival.
KTVT, branded CBS Texas, is a television station licensed to Fort Worth, Texas, United States, serving as the CBS outlet for the Dallas–Fort Worth metroplex. It is owned by the network's CBS News and Stations division alongside independent outlet KTXA. The two stations share primary studio facilities on Bridge Street east of downtown Fort Worth; KTVT operates a secondary studio and newsroom—which also houses advertising sales offices for the stations, as well as the Dallas bureau for CBS News—at the CBS Tower on North Central Expressway in Dallas. KTVT's transmitter is located in Cedar Hill, Texas.
WAGM-TV is a television station in Presque Isle, Maine, United States, affiliated with CBS, Fox, and The CW Plus. It is owned by Gray Television alongside Fort Kent–licensed low-power NBC affiliate WWPI-LD. The two stations share studios on Brewer Road in Presque Isle; WAGM-TV's transmitter is located on the northern section of Mars Hill Mountain among the wind turbines.
HD ready is a certification program introduced in 2005 by EICTA, now DIGITALEUROPE. HD ready minimum native resolution is 720 rows in widescreen ratio.
QAM is a digital television standard using quadrature amplitude modulation. It is the format by which digital cable channels are encoded and transmitted via cable television providers. QAM is used in a variety of communications systems such as Dial-up modems and WiFi. In cable systems, a QAM tuner is linked to the cable in a manner that is equivalent to an ATSC tuner which is required to receive over-the-air (OTA) digital channels broadcast by local television stations when attached to an antenna. Most new HDTV digital televisions support both of these standards. QAM uses the same 6 MHz bandwidth as ATSC, using a standard known as ITU-T Recommendation J.83 Annex B ("J.83b").
KXII is a television station licensed to Sherman, Texas, United States, serving the Sherman, Texas–Ada, Oklahoma market as an affiliate of CBS, MyNetworkTV, and Fox. Owned by Gray Television alongside Telemundo affiliate KAQI-LD, the two stations share studios on Texoma Parkway in northeastern Sherman, with an additional studio on South Commerce Street and Elks Boulevard in southwestern Ardmore, Oklahoma. KXII's transmitter is located along US 377 in rural northeastern Marshall County, Oklahoma.
KFDA-TV is a television station in Amarillo, Texas, United States, affiliated with CBS. It is owned by Gray Television alongside Borger-licensed Telemundo affiliate KEYU. The two stations share studios on Broadway Drive in northern Amarillo, where KFDA's transmitter is also located.
KWTX-TV is a television station in Waco, Texas, United States, serving Central Texas as an affiliate of CBS and Telemundo. It is owned by Gray Television alongside Belton-licensed CW affiliate KNCT. The two stations share studios on American Plaza in Waco; KWTX-TV's transmitter is located near Moody, Texas.
In broadcasting, digital subchannels are a method of transmitting more than one independent program stream simultaneously from the same digital radio or television station on the same radio frequency channel. This is done by using data compression techniques to reduce the size of each individual program stream, and multiplexing to combine them into a single signal. The practice is sometimes called "multicasting".
A digital television adapter (DTA), commonly known as a converter box or decoder box, is a television tuner that receives a digital television (DTV) transmission, and converts the digital signal into an analog signal that can be received and displayed on an analog television set. Some also have an HDMI output since some TVs with HDMI do not have a digital tuner. The input digital signal may be over-the-air terrestrial television signals received by a television antenna, or signals from a digital cable system. It normally does not refer to satellite TV, which has always required a set-top box either to operate the big satellite dish, or to be the integrated receiver/decoder (IRD) in the case of direct-broadcast satellites (DBS).
A free-to-air or FTA Receiver is a satellite television receiver designed to receive unencrypted broadcasts. Modern decoders are typically compliant with the MPEG-2/DVB-S and more recently the MPEG-4/DVB-S2 standard for digital television, while older FTA receivers relied on analog satellite transmissions which have declined rapidly in recent years.
Digital television in the United States is available via digital terrestrial television (DTT), digital cable, satellite television, and IPTV providers.
High-definition television (HDTV) describes a television or video system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since at least 1933; in more recent times, it refers to the generation following standard-definition television (SDTV). It is currently the standard video format used in most broadcasts: terrestrial broadcast television, cable television, satellite television.
KEYT-TV is a television station licensed to Santa Barbara, California, United States, serving the Central Coast of California as an affiliate of ABC, CBS, and MyNetworkTV. It is owned by the News-Press & Gazette Company (NPG) alongside San Luis Obispo–licensed low-power, Class A Fox affiliate KKFX-CD ; NPG also provides certain services to Santa Maria–licensed Telemundo affiliate KCOY-TV through a shared services agreement (SSA) with VistaWest Media, LLC. KEYT-TV's studios are located on Miramonte Drive on TV Hill, overlooking downtown Santa Barbara; KCOY-TV and KKFX-CD share separate facilities at West McCoy Lane and Skyway Drive in Santa Maria north of Santa Maria Public Airport. KEYT-TV's transmitter is located atop Broadcast Peak, between Santa Barbara and Santa Ynez in the Santa Ynez Mountains.
