It doesn't matter how it is done, just that it is done. You can't extract bias only from how the news is created; one must merely read the news to detect bias. Even the NYT news section is littered with activism and bias. Which isn't to the mention the total lack of clarity between what is and is not opinion in the vast majority of papers.

Media-types live in an echo chamber that distorts their reality. Over time, the echos grow stronger and stronger, but those in the media still believe them; while those outside of the media see an ever escalating cacophony of noise.