Complex sentence: It operated a Columbus translator on W17AI channel 17 (now WDEM, which is still owned by the Triplett Family) until 1992, when WWAT was added to many cable providers in the Columbus market due to cable must-carry legislation.
Split into simpler sentences: It operated a Columbus translator on WDEM channel 17, which is still owned by the Triplett Family. In 1992 the station was added to many cable providers in the Columbus market due to cable must-carry legislation.