On November 9, 1987, MWT moved the channel 20 intellectual unit (call letters, staff, programming and Fox affiliation) to channel 13. It also returned the channel 20 license to the FCC on the same day. As a result, the FCC reckons the current KSTU as a separate station from the old channel 20. MWT went on the air with the new KSTU on channel 13 under Program Test Authority. It requested a license to cover the CP on November 16, which was duly granted on March 7, 1988.