But FOX isn't just news. If you missed it, it carries a good deal of entertainment as well.
Like O'Reilley. His show is just basic commentary and SOMETIMES is might be centered around the story of the day, but frequently it is not.
Greta's show is based on the mystery of note. No one needs to watch five hours of Natalie Halloway a week to keep abreast of the situation.
Fox's aim is to hit a wider audience, and they are very successful at it. The hiring of Mancow fits into their goals.
If you are so outraged, maybe you should stick to watching Brian Williams in the evening to get your thirty minutes of news.
Or you could just read the headlines on FR. But be careful, you might be disappointed if the posters aren't as highbrow as you.