No offense but are you series?
Do you mean CBS was a 'pinnacle of it's profession' - "at the time" - when on Fed 27, 1968 Walter Cronkite went on air and said that the Vietnam War was lost?
Which btw just happened to be after the Tet Offensive, which was a MAJOR defeat for the VC and NVA and a 'HUGH' victory for the US & ARVN military. You mean like "that time"?
I could go back further to WWII, but 36 years is a pretty good example of leftist media bias.
Cronkite had a unique gig at CBS. By 1968, he hated LBJ but was still a card carrying Liberal. He would have done or said just about anything to poison the well in Viet Nam.