Back in 2014, I was working an E-skip opening towards CO and NM. I logged KSLV 96.5 Del Norte with only 930 watts, then clicked down to 92.3 to find a station running the end of 'The Gospel Greats' and a support message for a business with a 719 area code. Thing is: There's NO full-power 92.3 in that area code, and no translators with religious programming! I researched this UNID station for a year or so, then quit because I couldn't find any references.
It wasn't KIJN Farwell TX either, an E-skip regular, on the Kingdom Keys Network based at KJRT/Amarillo TX.
CTListener - Sounds like one of those daytimers who accidentally left power on at night, and they left the box on USA Radio Network's audio subcarrier (which was Spacenet 3, 13) as there was no programming scheduled after power-down. I've noticed that with "CBS Radio Networks (beep) CBS Radio Networks (beep)" in the past on KGA-1510 and other stations. CKST-1040 Vancouver (pre-comedy) accidentally ran a test channel once from Westwood One with tones on the left and right channels and an announcer stating which tones were being heard. "The following tone is on the left channel only. (BEEEEEPPPPP)"
The best example was hearing WDAY-970 Fargo one Sunday night on an Alberta SDR (it hasn't been heard here) with generic smooth jazz music mixed with KBUL and KTTO. It was after a switch back to standard time, and they were running NFL that ran over if I recall...they were supposed to air Leo Laporte's weekend show afterward but never did, and the computer didn't switch them to the feed for Red Eye Radio later that night. This wasn't Boney James and David Benoit - it was very generic music, think Killer Tracks/Network Music-type. I was told that Premiere Networks has a 'test channel' that plays this music. No announcements either. I'll take it over an hour of political talk. (In fact I taped a little bit of the WDAY webstream that night because of that anomaly).