Complex sentence: When it signed on, WRBQ-FM was owned by Southern Broadcasting, in 1978, the station was purchased by Harte-Hanks, in 1983, the station was sold to Edens Broadcasting, headed by former Southern Broadcasting and Harte-Hanks executive Gary Edens.
Split into simpler sentences: When it signed on, WRBQ-FM was owned by Southern Broadcasting. In 1978, the station was purchased by Harte-Hanks, then in 1983 to Edens Broadcasting, headed by former Southern Broadcasting and Harte-Hanks executive Gary Edens.