There is a station in Dallas: KAAM 770 - kaamradio.com that is an Adult Standards format station that has been on the air more or less continuously since the late 1980s if I recall correctly. I like to listen to it when I'm in Dallas.
KAAM has always struggled as you can imagine. They are way out of the target demos so they have never gotten any agency attention and when they sent salespeople out to get accounts the hard way, they never appeared to consider that the type of establishments that directly bought were offering products or services that were so specialized that they could only sell so much to the limited audience before the effectiveness of the advertising wore off and the client moved on to some other medium leaving a void in revenue.
Things got so bad that the owner, going on a year ago now, started substituting infomercials about financial planning, funeral planning, and other captivating subjects in place of music between 1:00pm an 3:00pm. The published 12+ ratings which were about a .6 representing a little over 100,000 listeners in market 5 soared to a dazzling .3 and has stabilized for the time being at about 85000 listeners.
About six months ago, the driving force behind KAAM, morning host and PD Jaan McCoy aka Jaan Kalmes whose real interest is in 1950s and 1960s music bought a station in Greenvile, TX, KGVL 1400 and left KAAM. He and a couple of other Dallas Oldies veterans are entertaining the listeners of Greenville now.
During the infomercials, I listen via iPhone to KZQX in Kilgore - Longview, TX. It's actually entertaining and in the small community that it serves, is viable.
http://www.kzqx.com/
Listening to 105.3 as I type this, the music is so draggy and drab, I'm having trouble keeping my eyes open. That seems to be a big problem with the Standards formats that I've heard with the exception of KAAM and KZQX. I am rather unimpressed. Hopefully this is a stunt while they get something else up and running that has more appeal to some demographic.
Here in OKC, KOMA-AM had a big band and standards format in the late 1980s and KNOR 1400 had one not too long after KOMA quit.