Good point, I had forgotten that KFZO is a short stick Class C. I think they may be on the same facility as when the station launched as KJZY ~35 years ago.KFZO may only have a 0.7 share, but that's with a 55 dBu that doesn't even reach downtown Dallas! KQBU-FM may not have the best signal, but they certainly cover Houston better than KFZO covers Dallas, so I think there's potential for a similar format to pull at least a 1 share in 6+ if it were put on KQBU-FM.
Previous separate music formats on 93.3 at least have drawn ratings with a pulse. Almost makes you wonder if Univision is deliberately tanking the station as to not draw listeners from their other outlets here.
Classic example of a station that would do much better under different ownership.