Here are some of the longest running TV call letters in Canada, CHCH, CFTO, CBLT, CBOT.
I tend to omit the "-TV" and "-DT" suffixed myself when it comes to TV callsigns.Discounting the addition of the "-DT" suffix after the digital transition, Canada's two oldest TV stations (CBFT Montreal and CBLT Toronto) still have the same call letters, although CBLT has changed channels twice over the years.
Others from Ontario, pre-1970 sign-ons:
Barrie - CKVR 3 (1955)
Hamilton - CHCH 11 (1954)
Kingston - CKWS 11 (1954)
Kitchener/Waterloo - CKCO 13 (1954)
London - CFPL 10 (1953)
Ottawa - CBOT 4 (1953), CBOFT 9 (1955), CJOH 13 (1961)
Peterborough - CHEX 12 (1955)
Toronto - CFTO 9 (1960)
Wingham - CKNX 8 (1955, though it only exists as a full satellite of CFPL anymore)
When did WNEH Greenwood go defunct? I didn't hear anything. Are they sharing spectrum with some other station, or are they off the air entirely?
I've never quite understood the need for an SCETV station in that area, but granted, given the terrain, they might be a bit far afield of WNTV and WRLK for reliable OTA reception in Greenwood and surrounding counties.
My apologies - WNEH is still on the air. However, it's ironic that WNTV the Greenville station is the on the air but Spartanburg's WRET went dark (especially with having ETV Upstate's studios at USC Upstate in Spartanburg).
I'm thinking WNEH probably helps bring ETV service to Greenwood/Laurens/Abbeville/Edgefield/McCormick and even the (North) Augusta/Aiken area.
Some others outside Ontario with startups in 1960 or earlier:
Here are some of the longest running TV call letters in Canada, CHCH, CFTO, CBLT, CBOT.
And don't forget Maine first TV Station WABI TV Bangor; Also WAGM TV Presque Isle in Northern Maine, both have same calls since day one.Here in Massachusetts, WWLP in Springfield, although moving in it's early years from Channel 61 to Channel 22 and later to "mapped" Channel 22, has had the same call letters since going on the air in 1953.
Both of Boston's PBS member stations, WGBH-2 and WGBX-44, have had their original call letters since going on the air in 1955 and 1967 respectively. And WGBY-57 Springfield has been using those call letters since first going on the air circa 1970 or 1971.
In Providence, WJAR-10 has been using those call letters since their first day on the air in 1949.
In Northern New England, Portland's WCSH-6 and WMTW-8 has had those call letters since their respective first broadcasts in 1953 and 1954.