What exactly is your point?
If "reality tv" isn't your favorite . . . okay. The described cooking show would be "reality tv", RPG live play shows would be "reality tv" . . . we'll definitely be seeing a lot of that. If it's not your bag . . . okay. Shrug.
Live play RPG shows are a huge part of why D&D is so popular today. Why would they NOT include that type of programming?
Will they have scripted television shows, like Amazon's "Wheel of Time" or "Rings of Power"? Like Netflix's "Shadow and Bone"? They haven't announced anything yet, so it's not super likely. But maybe, we'll see.
What's left? The D&D cartoon and the D&D movies. Nobody will be excited for the first 3 movies, and the current movie is a Paramount joint with the rights tied up there. But yeah, we'll probably see all of that, minus "Honor Among Thieves".
They could play fantasy content from other production companies . . . . but the good stuff has rights tied up with other streaming services, so we're left with the not-so-good stuff from years gone by, whose appeal is mostly nostalgia to old people like me (Gen X). But this kind of content is low-hanging fruit for streaming services, so we're likely to see it on D&D TV . . . again, we'll have to wait and see. "Sorcerer", "Beast Master" . . . maybe "Xena" and "Hercules" . . .
Will D&D TV be this amazing new streaming service with tons of new, well-produced, scripted fantasy content? While that would be awesome, it's not likely. So what? It will be what it will be, you will like or you will not like it. Others will dig it, especially if it brings a bunch of live-play shows together in one easy-to-find place with the D&D logo overlooking the entire schedule.