You can select language for the set-top box menu.
Press the Centre key.
Highlight Apple TV Languages.
Highlight Add Language....
Highlight the required language.
To select the new language as the default set-top box language, highlight Use ‹language›.
To keep the current language as the default set-top box language, highlight Keep ‹language›.
To subsequently select another language as the default language, highlight Edit.
Highlight the move icon next to the required language.
Press the Centre key followed by the Top navigation key to move the language to the top of the list.
Press and hold MENU to return to the main menu.