Complex sentence: Larry Berg, the former owner of competitor WBUT AM/FM from 1964 until 1978, resurfaced at WISR a few years later, where he hosted his own afternoon talk show and sold airtime.
Split into simpler sentences: Larry Berg, who had been the owner of competitor WBUT AM/FM from 1964 until 1978, would not disappear from the broadcast industry entirely. He resurfaced at WISR a few years later, where he hosted his own afternoon talk show and sold airtime.