The New York Post is a great example. It was the sports and bookie newspaper - they’d publish Vegas odds and have tabloid news. They slowly transformed into a giant editorial paper and funnel into the broader Fox ecosystem.
They have a great, free product. I need to pay to read The NY Times, but Fox is free and the sponsors are all low quality high margin stuff. Radio is prostate pills, TV is old people drugs and gold, etc.
https://mediabiasfactcheck.com/fox-news-bias/
The Fox issue is they conflate the two. I used to watch alot of TV news and the actual news content was pretty good on Fox on national issues, but their affiliates were usually pretty awful.
The news product produced by the networks until circa 1999 were a superior product in every way. Cable outlets have always danced with these issues as a TV channel that says the same thing all day gets boring.
But propaganda is tricky you need people to keep paying attention which means the most overt spin is to be avoided. Done well you shift the narrative over decades not just swap positions on day one. Fox News is the most well known US example, but you don’t want to just preach to people who already believe your message.
Thus you want to control the widest possible selection of media.