Complex sentence: KOZK's digital signal remained on its pre-transition UHF channel 25, using PSIP to display both stations' virtual channels as their former UHF analog channels 21 and 26.
Split into simpler sentences: KOZK's digital signal remained on its pre-transition UHF channel 25. Through the use of PSIP, digital television receivers display both stations' virtual channels as their former UHF analog channels 21 and 26.