There are, roughly, two kinds of television show. One is built around a single gravitational mass — a protagonist so magnetic the entire universe bends toward them. The other spreads its weight across a constellation, an ensemble where no single star outshines the sky. Both can be brilliant. They are also, secretly, in constant tension, and the best shows are the ones that cheat the line between them.
A protagonist gives you someone to become. An ensemble gives you somewhere to belong.
The case for one
The protagonist show is a character study with the volume up. Breaking Bad is unthinkable without Walter White at its center — every other character orbits his transformation, defined by how they react to his gravity. The focus is the point: we are watching one soul change, in close-up, for sixty-two hours.
The case for many
The ensemble show makes a different bet — that a world is more interesting than a person. The Wire is the genre's masterpiece, a series with no real lead at all, only a city seen from a dozen angles until the city itself becomes the protagonist. Game of Thrones killed its apparent hero in season one specifically to announce that no one was safe and everyone mattered.
The shows that cheat
The smartest series refuse to choose. Succession looks like an ensemble — a whole family of monsters — but quietly runs on the engine of a protagonist's doomed ambition. Friends gave six leads equal billing while letting each carry a week. The trick is to make every face feel like the main character of their own story, even as one thread pulls the whole thing forward. Get that balance right, and you don't make a show about a person or a world. You make one that feels like both.