Complex sentence: CBS wanted to make WBBM in Chicago full-time on 780 AM, which was a shared frequency with KFAB in Omaha, Nebraska and in order to do that they moved KFAB to 1110 AM.
Split into simpler sentences: CBS wanted to make its Chicago station WBBM full-time on 780 AM, which was a shared frequency with KFAB in Omaha. In order to do that they moved KFAB to 1110 AM.