2GZ

2GZ went on the air from Orange, New South Wales, Australia in 1935 and broadcast on a couple different AM frequencies before converting to the FM band in 1999.  They are now part of the Triple M network with new call letters 2OAG.
 

K296GN

K296GN "Juan 107.1" is a Spanish Variety Hits station licensed to Prescott Valley, Arizona.  They are the HD3 subchannel of KPPV.
 

WYSU

88.5 FM WYSU is a public radio station owned by (W) Youngstown State University in Youngstown, Ohio.  The 50,000-watt outlet went on the air in October 1969 and became a charter member of National Public Radio when they debuted about a year and a half later (you can barely see a vintage NPR logo inside the eyeball on this sticker--click it bigger.)  NPR programs, Classical music, Jazz and weekend specialty shows make up the bulk of WYSU's schedule.

More Sunnys

WRSN - Burlington, North Carolina

WSNX - Muskegon, Michigan

WSYA - Montgomery, Alabama

WSYE - Houston, Mississippi

 

WOKI

100.3 FM WOKI went on the air in 1974 simulcasting the Top-40 format of its sister station WOKI 1550 AM.  The stickers from "100.3 The River" date to the late 90s when they were an Adult Album Alternative station.  The WOKI call letters later moved to 98.7 FM where it is currently a News/Talk station.  100.3 FM WOKI was licensed to Oak Ridge, Tennessee near Knoxville.
 

WGOM

860 AM in Muncie/Marion, Indiana went on the air in 1955 with call letters WMRI.  In 1970 they changed calls to WGOM (W Giant Of Music) inspired by locally-born James Dean's movie Giant.  WGOM was a Top-40 station throughout the 1970s with later formats including Adult Standards and Southern Gospel.  The WMRI call letters returned in 2006 and they are currently a Sports station and ESPN Radio affiliate.
 

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.