And he blames cable news! Partisanship wormed its way into network news long before profitability was ever an issue. Network news partisanship dates back to the 50s and 60s!
Sad but true. And we, the masses, didn't get it then. Last year in high school history class my son was shown a 'year end review' from TV in the early 80's. He came home and told me how biased it was against the Repubs. This was during RR's presidency. I told him that most people believed the news then, it didn't occur to us not to. Really glad to have awakened to the blatant manipulation in favor of the 'progressives'. Wish I had realized it a long time ago.