10. A method for automatically setting an external device connected to a digital TV, comprising: setting a user-set language in the TV; detecting a user action for displaying a list of an external device connected to a digital television (TV); sending a signal to an external device in response to detecting the user action; identifying, using a reply to the sent signal, whether the detected external device is present; displaying the list according to the identified result; detecting a user action for selecting one external device included in the displayed list; and setting a setting value of the selected external device based on the user-set language set in the TV in response to detecting the user action, wherein the detected external device is driven according to the set setting value.
10. A method for automatically setting an external device connected to a digital TV, comprising: setting a user-set language in the TV; detecting a user action for displaying a list of an external device connected to a digital television (TV); sending a signal to an external device in response to detecting the user action; identifying, using a reply to the sent signal, whether the detected external device is present; displaying the list according to the identified result; detecting a user action for selecting one external device included in the displayed list; and setting a setting value of the selected external device based on the user-set language set in the TV in response to detecting the user action, wherein the detected external device is driven according to the set setting value. 16. The method according to claim 10 , wherein the driving the external device automatically sets a subtitle of the external device according the set setting value.