Top 10 KHOU Launches 4 p.m. Newscast, Officially Replacing Oprah in Houston By Merrill Knox on Aug. 1, 2011 - 11:45 AM Two months after Oprah ended her syndicated daytime show, KHOU — the CBS affiliate in Houston — becomes the latest station to fill her former time slot with news. Starting today, Len Cannon will anchor a half-hour news ...