国内有工厂生产并出口USB DVB-C/DVB-T Hybrid TV receiver（见图） 
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其规格如下： 
Watch and record DVB-C or DVB-T digital free-to-air TV programs on your PC or Laptop.  
 
With USB DVB-T&DVB-C receiver: 
Watch DVB-T digital TV on your PC or laptop, in a window or full screen. 
Watch DVB-C digital TV on your PC or laptop, in a window or full screen. 
Digital TV gives you better pictures and CD quality sound.  
Record digital TV to your PCs hard disk, Playback your TV recordings at any time onto your PC screen. 
USB DVB-T&DVB-C TV receiver includes a portable antenna, so you can watch digital TV at home or while your travel. 
 
Enhanced DVB-T&DVB-C reception.  
Inside the USB DVB-T&DVB-C TV receiver is the latest, highly sensitive, ATSC receiver for the best TV reception. And we include a small portable antenna. 
 
Digital Video Recorder.  
Video Format: MPEG-II Main Profile& Main Level  
Audio Format: MPEG-II Audio Layer I & II 
 
System requirements: 
           P4 1.7GHz CPU or above 
           256MB RAM   
           VGA card with 32MB memory  
           One available USB 2.0 port    
           Compatible Windows-sound card 
           Microsoft windows XP/Vista 
 
有谁在DM800HD上试用过吗？ 如能使用，那将是DM800用户的福音了！