KYNN

A KYNN Country Club registration card.  1490 AM and 94.1 FM simulcast a Country format in Omaha, Nebraska circa 1982/83.
 

KSGN

89.7 FM KSGN is a Contemporary Christian station licensed to Riverside, California.
 

KGVN

KGVN "93.7 The Groove" was a short-lived Rhythmic Oldies station in Reno, Nevada circa 2000/2001.
 

CJAY

CJAY 92 is a 100,000-watt Active Rock station in Calgary, Alberta.  They have carried some form of Rock format since going on the air in June 1977.

KCLI

99.3 FM KCLI is a News/Talk station licensed to Cordell, Oklahoma.  They no longer simulcast on 1320 AM which is currently a Sports station known as "The Score."
 

WBER

950 AM WBER was on the air in Charleston, South Carolina from 1963 to 1984.  Most (or all) those years were spent with a Country format.  WBER was licensed to Moncks Corner, SC.
 

WCNV

89.1 FM WCNV is a public radio station licensed to Heathsville, Virginia that simulcasts the programming of Richmond, VA's 88.9 WCVE.  These two stations, along with three others and two television stations, are what used to be known as the "Idea Stations."  In 2019 they rebranded as VPM (Virginia Public Media.)

UPDATE:  A much more detailed account of the recent history of these stations can be found in the comments.  Thanks Tybois!
 

KHBZ

KHBZ is a Country station in Harrison, Arkansas/Branson, Missouri.  They are now branded as "New Country 102.9"
 

Evasion FM

Evasion FM broadcasts on more than a dozen frequencies mostly in the suburbs near Paris, France.  Listening live while making this post I heard a mix of English and French-language pop music including Rihanna, Pharrell Williams, Rosa Linn and Mika.

Radiodifusión Argentina al Exterior

Argentina's first external broadcaster was SIRA (Servicio Internacional de la República Argentina) which was founded in April 1949.  After a military coup in 1955 SIRA was shut down and relaunched three years later as RAE (Radiodifusión Argentina al Exterior.)  They added to their name in 2016 and are now "RAE Argentina al Mundo" (Argentina to the World.)  The station broadcasts from Buenos Aires via shortwave, satellite and the internet in seven languages.

WWRZ

"Max 98.3" WWRZ plays Adult Hits in the Lakeland/Winter Haven area of central Florida.

WRCK

Chicago, Illinois' WDAI flipped from a Disco format to an Adult-Top 40/Oldies hybrid as "95 W-Rock" with new call letters WRCK.  The very short-lived switch lasted a mere 5 months (May 22 to October 20, 1980) and they then flipped to Top-40 becoming WLS-FM.  The last day of WDAI was spent stunting with a loop of Donna Summer's "Last Dance." The bottom video documents the moment of the actual format change which occurs at around the 27:40 mark.

WNCK

89.5 FM WNCK began in 2002 as a commercial-free Adult Contemporary station run by the owner out of his home in Nantucket, Massachusetts.  They soon entered into an agreement with Boston's WGBH  which simulcast their mix of Classical, Jazz, Blues, Celtic and news programming.  In 2009 they began simulcasting the Classical music of Boston station WCRB.  Since 2020 they have been a Country station branded as "89.5 Quahog Country".  (Quahogs are the largest of the edible hard clams, sometimes called chowder clams.)  I wonder how many non-commercial, full-time Country stations exist in the United States.  Are there any others you can think of?
 

WKBG

WKBG was a Country station in Augusta, Georgia circa the early-to-mid 1990s.
 

WHYA

"Y101" WHYA is a Top-40 station licensed to Mashpee, Massachusetts.
 

WFCR

88.5 FM WFCR is a non-commercial, public radio station broadcasting from the Pioneer Valley area of  Massachusetts.  The license holder is the University of Massachusetts Amherst.  WFCR went on the air in May 1961 and is also heard on 5 translators.  Their call letters stand for Five Colleges Radio.
 

WCCO

The station that would become WCCO signed on in Minneapolis, Minnesota in September 1922 as WLAG.  Financial problems knocked them off the air in 1924 but the Washburn Crosby COmpany (the forerunner to General Mills) had them up and broadcasting a few weeks later with new call letters WCCO.  Today the 50,000-watt clear-channel station airs a News/Talk format featuring mostly local hosts along with a large amount of live sports.  Except for a period between 2007 and 2018, WCCO has been the flagship station of the Minnesota Twins since their first season in 1961.

WASK

1450 AM WASK went on the air in Lafayette, Indiana in 1942.  98.7 FM signed on in 1992 originally as WIIZ and became WASK a few years later.  Today the AM half is a Sports outlet while the FM plays Classic Hits

KTOM

92.7 FM KTOM plays Country music in the Santa Cruz/Monterey/Salinas area of California.  Another KTOM sticker from their previous frequency can be seen here.
 

KPGF

93.7 FM KPGF is an all-80s station licensed to Sun Valley, Nevada near Reno.