Complex sentence: WGNO cancelled the newscast it produced for WNOL after the June 4,2010 edition due to dismal ratings; by that time, the newscast on WUPL had passed the WNOL newscast at a distant second behind WVUE.
Split into simpler sentences: WGNO cancelled the newscast on WNOL after the June 4,2010 edition due to dismal ratings. By that time, the newscast on WUPL had passed the WNOL newscast for distant second behind WVUE.