Good news, HDTV tuner(AutumnWave onAir GT) is working in 2008 server!!! After useing registry monitor in XP, I found some registry is missing in 2008, Following is what I did in Server 2008: 1) open GraphEdit, if the "BDA Source Filters" is missing in insert dialog, then continue to next step. else you should stop. 2) export following registry tree to a file: [HKEY_CLASSES_ROOT\CLSID\{DA4E3DA0-D07D-11d0-BD50-00A0C911CE86}] 3) in the file, replace all "HKEY_CLASSES_ROOT\CLSID\" to "HKEY_CLASSES_ROOT\Wow6432Node\CLSID\" i.e. change to: [HKEY_CLASSES_ROOT\Wow6432Node\CLSID\{DA4E3DA0-D07D-11d0-BD50-00A0C911CE86}] 4) import the modified reg file. 5) then open GraphEdit, the "BDA Source Filters" should show up, then build the correct filter graph, then play the graph, you should see the TV. Now, I just need find a good player. Looks like this is a 64bit issue, Probably because GraphEdit is 32bit app, and it need some Wow6432Node reg setting which was missing in my initial env. Maybe a pure 64bit player should work without above fix, but at least this fix prove the BDA server package works. Cheers.