As I recall, the last incarnation was an oldies format.
Back in the early 1990s I was in Kerrville and knew the folks at KBRN at the time. The station ran a nostalgia format then and struggled. The management mentioned they were still trying to get back in the good graces of the community then. I suppose others before them had wronged the community in some way. I was told they tried to do a live broadcast from a community event and were asked to leave, told they were not welcome. In 1993 they told me they were billing about $5,000 a month, sometimes less.
Like many small town, low wattage daytimers, they had a tough road to travel in the first place but considering how much of their coverage commuted to San Antonio beyond their coverage, it made things doubly tough.
Like many of the Hill Country communities, Boerne is neither as small or as 'sleepy' as it once was. If a local broadcaster can get plenty of community info on the station, they might be able to make it go but I sure wouldn't expect such a station to make me rich by any stretch.
He might not have been the first, but at least he was likely the second owner: Alan Hemberger who was an anchor at the time on KMOL TV. He later went to Houston and to New England. Alan passed away a couple of years back I recall. For most of its history the station was either an oldies 1950s to mid 1960s station, big band or Music of Your Life type of station (actually 1940s through 1960s). I always wondered about those format choices.