One of the first things Tokyoites who relocate to Osaka notice is that, while their favorite mainstream media news source is available in both cities, the tone and often substance of the reporting is different.
It's a cliche among Japan watchers that "Japanese newspapers and TV news are all the same." Yes, one sees the similarities easier than the differences. But it's equally false to imply that readers of the five major newspapers or viewers of the major TV networks receive exactly the same views about the same subjects.
Fundamentally, Tokyo journalism emphasizes a "bird's-eye view" of news topics, and encourages a dry, and often humorless, tone about major events. How can one be possibly taken seriously when discussing serious topics unless one is, well, serious?