How do you get your Netflix, Disney+, Hulu, or Prime Video fix? Chances are it's through a streaming device or smart TV, and there's a good chance that it's through a Roku device or one running its pioneering streaming operating system. At this point, cord-cutting is old news, and Roku was one of the earliest companies to drive the adoption of web-based streaming with its self-contained, app-driven devices.
Today, watching something "on Roku" is standard parlance and the company's popular platform can be found baked into some of the biggest TV brands in the world as well as in its own lineup of streaming devices sticks, and set-top boxes. Even so, that doesn't mean you totally get what a Roku actually is. What is Roku? How does Roku work? Do you need a subscription to use it? Is it just a device you buy, or is it software?