need help getting Mythbuntu working with WinTV HVR-2250

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http://ubuntuforums.org – I'm totally new to MythTV and DIY PVR systems, but comfortable with Linux (not an expert). I have a fresh installation of Mythbuntu 12.04.1 (32-bit) and I just installed my Hauppauge WinTV HVR-2250 TV tuner card into the computer. How do I get it detected and set up in MythTV? P.S. - This machine will serve as a backend for the XBMC clients I have set up throughout my house. (Hardware)