I have two dual tuner (DVB-T) USB sticks. If I stop TVservice.exe, take one off and restart tv service again I still see detached tuner listed with TV Server Configuration. It tells tuner type is Unknown (instead of DVB-T). I can remove the devices from list with Remove-button but when I restart TV service again, detached tuners shows on list again. So there's some database issue there. I'm using Vista 32bit with MSSQL installed automatically by RC1 refesh.