In many regions, the entire series is available on Max (formerly HBO Max).
If you are looking at a screen that says "You have requested...", follow these steps to stay safe: You have requested : Batwoman.S01E19.720P.MP4.L...
720p MP4 (High Definition). This is a standard video format compatible with almost all devices (phones, laptops, smart TVs). In many regions, the entire series is available