After signing in crunchyroll , the app may prompt you to activate your device. Follow the instructions displayed on your TV screen. It typically involves visiting crunchyroll.com/activate on your computer or mobile device and entering a code provided by the Crunchyroll app on your TV. https://www.tvlinkcode.com/activate-crunchyroll-on-roku-xbox-fire-tv-samsung-vizio-lg-apple-and-sony-tv/