Channel 78 was removed from television use in 1983, but was formerly used by television stations in North America which broadcast on UHF frequencies 854–860 MHz.
There was one full-power originating station on this frequency in Canada.
CBEFT (
Radio-Canada Windsor) first aired on Channel 78 in 1976, moving to channel 54 in 1982. By 1996, the station had become a simple rebroadcaster of
CBOFT Ottawa
Ottawa is the capital city of Canada. It is located in the southern Ontario, southern portion of the province of Ontario, at the confluence of the Ottawa River and the Rideau River. Ottawa borders Gatineau, Gatineau, Quebec, and forms the cor ...
–
Hull. Later a
CBLFT rebroadcaster, it had been moved to channel 35 due to the reassignment of UHF TV channels 52–69 to mobile telephony in 2009; it remained full-power analogue until closing down (along with all of CBC/Radio Canada's rebroadcasters) in 2012.
In the United States, channels
70–
83 had served primarily as a "translator band" containing
repeater transmitters to fill gaps in coverage for existing stations. These transmitters were forced to change frequency repeatedly, as stations which had moved from 70–83 due to the 1983 introduction of analogue mobile telephony typically had to move again by 2011 due to the loss of UHF TV channels 52–69 to cell phones. While as
low-power television stations these were not required to
convert to digital operation on the 2009 US transition date, most were adversely affected by the upstream full-power stations conversion. Many have gone
silent.
*
WTTW (
PBS Chicago) operated a channel 78 repeater from 1964 to 1972, now defunct. Coverage is now provided directly by the main transmitters for the two Chicago PBS member stations (channels 11 and 20), housed at the
Sears Tower upon its completion in 1973.
*
KATU-TV (
ABC Portland, Oregon
Portland ( ) is the List of cities in Oregon, most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated close to northwest Oregon at the confluence of the Willamette River, Willamette and Columbia River, ...
) rebroadcaster K78AU
Maupin, Oregon moved to K54BK channel 54 and will relocate to
digital channel 17.
*
KCBD (
NBC Lubbock) rebroadcaster K78AZ
Matador, Texas had moved to K40FK channel 40. It is no longer in operation.
*
KECI-TV (
NBC Missoula) rebroadcaster K78CG
Salmon, Idaho moved to K65BG channel 65; it is now digital channel 30 as
K30PW-D.
*
KHQ-TV (
NBC Spokane) rebroadcaster K78AI
Libby, Montana moved to
K66DR channel 66 and will move to digital channel 26.
*
KIIN-TV (
PBS Johnston, Iowa) rebroadcaster K78CR
Keosauqua, Iowa moved to
K54AF channel 54; it is currently digital channel 24.
*
KIRO-TV (
CBS Seattle
Seattle ( ) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America. With a population of 780,995 in 2024, it is the 18th-most populous city in the United States. The city is the cou ...
) rebroadcaster K78BM
Point Pulley, Washington moved to
K67GJ channel 67; it is now digital channel 18.
*
KOAT-TV (
ABC Albuquerque) rebroadcaster K78AS
Santa Rosa, New Mexico moved to K64DV channel 64; it is no longer in operation.
*
KOCO-TV (
ABC Oklahoma City
Oklahoma City (), officially the City of Oklahoma City, and often shortened to OKC, is the List of capitals in the United States, capital and List of municipalities in Oklahoma, most populous city of the U.S. state of Oklahoma. The county seat ...
) rebroadcaster K78BK
Seiling, Oklahoma had moved to K55EZ channel 55. Rebroadcasters for this region have been moved to digital channels K19GZ-D, K41KS-D, K43KU-D, K47LB-D and K49DO-D, all operated by
KFOR-TV.
*
KSL-TV (
NBC Salt Lake City
Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake Ci ...
) rebroadcasters K78AF
La Barge, Wyoming and K78BF
Preston, Idaho have been moved to K02GE channel 2 and K33GF channel 33 (now
K33GF-D).
*
KTVK (
Phoenix) rebroadcaster K78AC
Kingman, Arizona moved to K23FV channel 23 (now
K23FV-D).
*
KTVX-TV (
ABC Salt Lake City
Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake Ci ...
) rebroadcaster K78AA
Castle Dale, Utah moved to
K32FR channel 32, now digital channel 38.
*
KUTV (
CBS Salt Lake City
Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake Ci ...
) rebroadcaster K78BG
Myton, Utah has moved to
K41GT channel 41 (now defunct).
Use of Channel 78 by U.S. Military during Vietnam War
From 1962 until the
Fall of Saigon on April 30, 1975, the
United States Military operated the
American Forces Vietnam Network relaying its programming from the main AFVN broadcast facilities in
Saigon
Ho Chi Minh City (HCMC) ('','' TP.HCM; ), commonly known as Saigon (; ), is the most populous city in Vietnam with a population of around 14 million in 2025.
The city's geography is defined by rivers and canals, of which the largest is Saigo ...
to the Channel 78 transmitter in
Cần Thơ.
[{{Citation, title=AFVN TV News Saigon Vietnam 3 Feb 1973 SP4 Robert Morecock and Sports by SP5 Jerry Elliott afrs afn, date=November 12, 2009 , url=https://www.youtube.com/watch?v=G5vbj3ZCATM, language=en, access-date=2022-11-18]
References
78