This question draws me into the concepts of Satellite 5 (featured in three Doctor Who episodes.).
An orbital space-based media would need to focus on both Earth and all of the highlights of what is going on in the atmosphere. I am going to assume that journalistic integrity has been restored and there is a ton of construction going on in space.
Idealistically social issues, climate issues, technology, and philanthropic issues will be at the forefront of every media outlet, print or video. With the way climate change is bounding forward, social issues will become more intense.
Technology will most likely be a huge focus of journalists. As quickly as technology changes today I can only imagine how quickly it will change in the future. We can only hope that trash and recycling have been dealt with via tech and behavior and won’t be in the media frequently… But then again strikes might be big news.
Realistically “Entertainment” issues will most likely be up front. Who’s getting a divorce and who is getting married, or whatever the equivalent is will still be there. Who got in a fight and who is on what new fangled drug? Who is sleeping with who will probably still be highlighted in some of the media… sadly I don’t see this sales pitch going away. Sports will still be big… though there may be new sports covered (Zero G Quidditch anyone?)