Complex sentence: KSAO was affiliated with TheCoolTV on digital subchannel 49.2 until April 2016 when it was dropped and replaced by Retro TV as part of a affiliation deal with its parent company Luken Communications that also included the addition of Rev'n on digital subchannel 49.5.
Split into simpler sentences: KSAO was affiliated with TheCoolTV on digital subchannel 49.2 until April 2016 when it was dropped and replaced by Retro TV. As part of an affiliation deal with Retro TV's parent company Luken Communications, it also included the addition of Rev'n on digital subchannel 49.5.