Warner Bros' desire to branch out into TV shows based off of The Batman, then, is a good idea. TV shows, in particular, can really dig into characters' personalities and motivations, different areas of a city or world, and show what life is like away for ordinary citizens rather than the superheroes themselves. Spin-off productions allow studios, showrunners and other creators to build on the world that movies like The Batman tease. The primary focus of origin movies has to be its protagonist, antagonist(s) and the film's main plot. For an origins story like The Batman, which will focus on Bruce Wayne's first year as the Caped Crusader, there are even fewer opportunities to expand on these areas. Unless a film's runtime is over two and a half hours, some simply don't have the time for much in the way of world building or side character development. Regardless of how many spin-off TV shows (or movies) end up linking back to The Batman, it's a smart move on Warner Bros' part to flesh out this particular reboot of the iconic DC comics superhero.