Programs incomplete

<p>Good day, i have a strange complaint, on DSTV channel 127 (Sony) you showed NCIS season 4. But you did not air the last episode. You episode 23 twice. I watched the series way back so i know what happens, but my sister did not. And this is kind off a important episode for the next season.</p> <p> </p> <p>Please could you rectify this?</p>