Complex sentence: The station went on the air as country music formatted KDOL in the 1960s, then changed to a gold-based Adult Contemporary format in 1986 with the same call letters after being sold to Chambers Broadcasting, which owned KTPI.
Split into simpler sentences: The station went on the air as country music formatted KDOL in the 1960s. It later changed to a gold-based Adult Contemporary format in 1986 with the same call letters after being sold to Chambers Broadcasting, which owned KTPI.