TUESDAY TV Apr 28, 2015 OC,SH |click image for full size| Remember this series!? “Medical Center” aired on CBS, 1969-1976. When it was canceled, it was tied with “Marcus Welby, MD” (also on 1969-1976) as the longest-running TV medical drama at that time. Share this:TwitterFacebookMoreLinkedInPinterestTumblrEmail Also check out: