News Corporation is free to claim its Fox News channel is "fair and balanced" in adverts describing the service, the Advertising Standards Agency has ruled.
Two people complained after the media giant placed adverts celebrating its achievements in the British national press.
The advert was headed "defying conventional wisdom for six decades" and said: "Time and again, they said it couldn't be done. Time and again, we did it. In the process, we've given new choices to billions of people around the world."
In a timeline of News Corp's milestones, it said: "1996... Fox News Channel, pioneer of fair and balanced news coverage, is born. Today, it dominates cable news in the US."