OS 1.5 Update:
Expandable USB storage for apps and games on Amazon Fire TV — Use a connected USB mass storage device to expand your Amazon Fire TV storage for downloaded apps and games - this enables you to download more games for easy access.
Browse removable storage for your Amazon Fire TV
Connect to your hotel or student hall Wi-Fi with captive portal support — Take your favourite movies, TV shows, games and more with you when you are away from home. Amazon Fire TV lets you connect to Wi-Fi that requires web authentication - this includes Wi-Fi at hotels, as well as some universities.
New X-Ray on Amazon Fire TV — You can now use X-Ray on Amazon Fire TV to explore your favourite movies and TV shows on Amazon Instant Video directly on your TV screen. Powered by IMDb, you can identify actors and songs in the current scene, explore actor bios and more by simply clicking the "Up" button on your Amazon Fire TV remote.
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Private listening on Amazon Fire TV — Support for wireless Bluetooth headphones lets you listen to your favourite movie, TV show or music without bothering others in your household.