Digital subchannel

subchanneldigital multicastsubchannelsChanneldigital subchannelsdigital multicastingchannelsdigital broadcastdigital multicast channeldigital multicast network
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.wikipedia
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Ion Television

IONPax TVPAX
For example, most of the owned-and-operated stations/affiliates of Ion Television transmit six streams in the following format:
Ion Television is available throughout most of the United States through its group of 62 owned-and-operated stations, as well as through distribution on cable and satellite providers; since 2014, the network has also increased affiliate distribution in several markets through the digital subchannels of local television stations owned by companies such as NBCUniversal and Nexstar Media Group where the network is unable to maintain a main channel affiliation with or own a standalone station, for the same purpose as the distribution of Ion's main network feed via cable and satellite.

JUCE TV

JCTVJUCEJCTV / JUCE TV
The most of any large broadcaster in the United States, Trinity Broadcasting Network stations transmit five channels (in standard definition) and its subchannel services Hillsong Channel, JUCE TV/Smile (two networks that technically operate as separate 24-hour services, but since June 2015, air portions of their respective schedules on a single subchannel over-the-air), TBN Enlace USA and TBN Salsa.
JUCE TV is carried over-the-air on digital subchannels of TBN owned-and-operated and affiliated stations nationwide, usually on the third subchannel (for example, if the local TBN station broadcasts on channel 17, then JUCE TV would be carried on digital subchannel 17.3).

Television station

television stationsTV stationstation
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.
Television stations broadcasting over an analog system were typically limited to one television channel, but digital television enables broadcasting via subchannels as well.

Hillsong Channel

The Church ChannelChurch ChannelHillsong
The most of any large broadcaster in the United States, Trinity Broadcasting Network stations transmit five channels (in standard definition) and its subchannel services Hillsong Channel, JUCE TV/Smile (two networks that technically operate as separate 24-hour services, but since June 2015, air portions of their respective schedules on a single subchannel over-the-air), TBN Enlace USA and TBN Salsa.
Hillsong Channel is available over-the-air on digital subchannels of TBN stations, and via select U.S. cable providers, Dish Network, Glorystar (free-to-air Galaxy 19) and DirecTV, in the UK and Ireland on Sky and in many nations around the world via direct-to-home satellite, such as ABS1 to India and the Middle East, Hot Bird satellite to Europe, and Agila 2 satellite both C-band and Ku-Band signal in Asia and the Philippines.

Analog television

analoganalogueanalogue television
By convention, the suffix position ".1" is normally used to refer to the station's main digital channel and the ".0" position is reserved for analog channels.
In many countries, over-the-air broadcast television of analog audio and analog video signals has been discontinued, to allow the re-use of the television broadcast radio spectrum for other services such as datacasting and subchannels.

Smile (TV network)

SmileSmile of a ChildSmile of a Child TV
The most of any large broadcaster in the United States, Trinity Broadcasting Network stations transmit five channels (in standard definition) and its subchannel services Hillsong Channel, JUCE TV/Smile (two networks that technically operate as separate 24-hour services, but since June 2015, air portions of their respective schedules on a single subchannel over-the-air), TBN Enlace USA and TBN Salsa.
Smile was initially available as a 24-hour-a-day service on all platforms, debuted on digital subchannels of TBN owned-and-operated station in 13 markets.

TBN Salsa

Salsa
The most of any large broadcaster in the United States, Trinity Broadcasting Network stations transmit five channels (in standard definition) and its subchannel services Hillsong Channel, JUCE TV/Smile (two networks that technically operate as separate 24-hour services, but since June 2015, air portions of their respective schedules on a single subchannel over-the-air), TBN Enlace USA and TBN Salsa.
The network is available as a 24-hour-a-day service distributed primarily on digital subchannels of TBN owned-and-operated and affiliated stations nationwide (usually on the fifth subchannel).

Television channel

channelTV channeltelevision channels
A virtual channel numbering scheme distinguishes broadcast subchannels by appending the television channel number with a period digit (".xx").
Digital terrestrial television channels are the same as their analog predecessors for legacy reasons, however through multiplexing, each physical radio frequency (RF) channel can carry several digital subchannels.

Ion Plus

Ion Lifedigital sub-channelIon Life Channel
Ion Plus is carried mainly as a digital multicast service on Ion Media Networks-owned stations as well as select Ion Television affiliates (and is primarily placed on the third subchannel); its base national feed is also available on select cable and satellite providers.

Qubo

Qubo ChannelcubōIon Kids
The brand would encompass programming blocks on NBC Universal and Ion's respective flagship broadcast television networks (NBC, Telemundo and Ion Television), a video on demand service, a website, and a standalone 24-hour network to be carried as a digital subchannel on terrestrial television stations owned by Ion Media Networks and by pay-television providers.

CFTV-DT

CFTV-TVCFTVLeamington, Ontario
On August 17, 2012, the CRTC gave approval to Leamington, Ontario community station CFTV-TV to broadcast four local subchannels on its digital signal, making it the first station in Canada to launch original content on its multiplex channels.
CFTV is owned and operated by a local non-profit consortium known as Southshore Broadcasting, and broadcasts four subchannels on UHF channel 34.

Decades (TV network)

DecadesDecades Network
Because of the tradeoffs, stations owned by CBS Corporation through its CBS Television Stations subsidiary (which include owned-and-operated stations of CBS and The CW, and some independent stations) generally opted not to carry digital subchannels and transmitted only a 1080i high definition main feed; this changed in 2013 with the addition of dedicated local news channels on CBS O&Os in New York City and Philadelphia (the company later announced the creation of Decades, a multicast network part-owned by CBS which aired on all CBS-owned stations from 2015 to 2018).
The network, which is primarily carried on the digital subchannels of television stations and on Cable TV through their cable providers, mainly airs classic television sitcoms and drama series from the 1950s through the 2000s, feature films from the same period, along with historical news and documentary programming.

QVC

QVC2QVC Over the AirQVC Over Air
QVC began to be carried as the fifth digital subchannel on most Ion Television owned-and-operated stations beginning on August 5, 2013; due to technical limitations caused by the number of subchannels Ion requires its stations to carry, QVC is carried in a squeezed full-screen 4:3 format and is transmitted in standard definition.

Cozi TV

New York NonstopCoziNBC Nonstop
Since the late 2000s, entertainment-based specialty networks (also known as diginets) have been created specifically for subchannels, most commonly those dedicated to airing reruns of classic television series (such as Me-TV, the Retro Television Network, Cozi TV and Antenna TV) and movies (such as This TV, GetTV and Movies!).
The network originated as a local news and lifestyle programming format that was launched between 2009 and 2011 and was seen on digital subchannels operated by nine owned-and-operated television stations of the NBC television network in the United States under the brand NBC Nonstop.

Station identification

identslegal identificationsident
The Federal Communications Commission (FCC) considers all subchannels carried by a single station to have the same call letters for legal identification purposes.

CBS Television Stations

CBSCBS owned television stationParamount Stations Group
Because of the tradeoffs, stations owned by CBS Corporation through its CBS Television Stations subsidiary (which include owned-and-operated stations of CBS and The CW, and some independent stations) generally opted not to carry digital subchannels and transmitted only a 1080i high definition main feed; this changed in 2013 with the addition of dedicated local news channels on CBS O&Os in New York City and Philadelphia (the company later announced the creation of Decades, a multicast network part-owned by CBS which aired on all CBS-owned stations from 2015 to 2018).
On October 21, 2014, CBS and Weigel Broadcasting announced the launch of a new digital subchannel service called Decades, scheduled to launch on all CBS owned and operated stations in May 2015.

The CW Plus

CW+CW PlusCW
A prime example is the Wheeling, West Virginia/Steubenville, Ohio market, which for decades was home to only two stations (CBS affiliate WTRF-TV and NBC affiliate WTOV-TV; the cable-only WBWO also served the market as a WB and now as a CW affiliate) and had to mostly rely on stations in Pittsburgh (and to a lesser extent Columbus and Youngstown, Ohio) to view programming from other networks.
The CW Plus is the national feed of The CW, owned by The CW Network, LLC (a joint venture between WarnerMedia and CBS Corporation, which each maintain a 50% ownership interest), that is primarily carried on digital subchannels and pay television outlets.

Digital television in Canada

transitioned from analogue to digital broadcastsdigital television conversiondigital conversion
Although digital television services in Canada use the same ATSC technology as the United States, none of the stations currently broadcasting a digital signal transmit any subchannel other than a possible HD service or a standard definition simulcast of the main channel.
Broadcasting digital terrestrial signals instead of analogue offers numerous advantages to the viewer, such as the following: support for high definition (HD) picture, support for 5 speaker surround sound, support for information on the current and the next few programs shown on the channel, support for sub-channels, Solomon-Reed error correction to eliminate multipath (ghosting), and support for mobile devices (i.e. ATSC-M/H).

KXII

KXIP-LDKXII-DT2KXII-TV
The station—which maintains an additional subchannel-only affiliation with Ion Television—is owned by Gray Television, and is sister to low-power MyNetworkTV affiliate K31LQ-D (channel 31, also licensed to Sherman), which is simulcast on KXII's second digital subchannel.

Digital cable

digitaldigital cable televisioncable
Operating in a sector traditionally lacking subchannels, digital cable television provider Music Choice packages its nearly 50 music channels (including Music Choice Play) as digital subchannels of one channel.
The subchannel is a logical channel of data within the physical channel.

WYTV-DT2

33.2DT2My YTV
WYTV-DT2 is a digital subchannel of ABC affiliate WYTV for the Mahoning Valley of Northeastern Ohio and Northwestern Pennsylvania.

WCBS-TV

WCBSCBS New YorkW2XAB
Because of the tradeoffs, stations owned by CBS Corporation through its CBS Television Stations subsidiary (which include owned-and-operated stations of CBS and The CW, and some independent stations) generally opted not to carry digital subchannels and transmitted only a 1080i high definition main feed; this changed in 2013 with the addition of dedicated local news channels on CBS O&Os in New York City and Philadelphia (the company later announced the creation of Decades, a multicast network part-owned by CBS which aired on all CBS-owned stations from 2015 to 2018).
Digital subchannel 2.2, branded as CBS New York Plus, was launched in November 2011 as a 24-hour news channel drawing upon the resources of WCBS-TV, WCBS radio (880 AM), WINS (1010 AM), and WFAN-AM-FM (660 AM and 101.9 FM).

Bounce TV

BounceGrown FolksBounce Media, LLC
There are nonetheless a few multicast channels that have broadcast familiar sports programs: Bounce TV, for instance, carried college football from historically black colleges and universities until 2013.
The network is affiliated with broadcast television stations in several markets through digital subchannels; it is also available on the digital tiers of select cable providers at the discretion of local affiliates.

American Broadcasting Company

ABCABC-TVABC Network
Still, ABC's limited reach would continue to hobble it for the next two decades; several smaller markets would not grow large enough to support a full-time ABC affiliate until the 1960s, with some very small markets having to wait as late as the 1980s or even the advent of digital television in the 2000s, which allowed stations like WTRF-TV in Wheeling, West Virginia, to begin airing ABC programming on a digital subchannel after airing the network's programs outside of recommended timeslots decades before.

Antenna TV

AntennaAntTVAnt TV
Since the late 2000s, entertainment-based specialty networks (also known as diginets) have been created specifically for subchannels, most commonly those dedicated to airing reruns of classic television series (such as Me-TV, the Retro Television Network, Cozi TV and Antenna TV) and movies (such as This TV, GetTV and Movies!).
Antenna TV is an American digital multicast television network that is owned by Nexstar Media Group.