美國和韓國是ATSC. 所以DVB-T沒有啟用.
看樣子你有CyberLink的Encoder.
所以選<美國和韓國>時啟用的應該是Analog TV.

請看微軟的回答:
http://support.microsoft.com/?scid=kb;en-us;555370
Also analogue channels (such as a VCR output) cannot be used once you have selected to use a Digital signal. This is the case even if the tuner card you have is a hybrid PAL/DVB-T or you have a stand alone analogue tuner