To watch ESPN on Firestick, you'll need to download the ESPN app from the Amazon Appstore. It's super easy, just search for "ESPN" and click download. Once you've got the app, you can sign in with your TV provider or subscription service to start streaming.
From there, you can browse through all the available content, including live games, highlight reels, and original programming. You can even customize your experience with features like multiview, which lets you watch multiple games at once.
