I would install TVE3 for this one, you may be pleasantly surprised.
TV-Engine 0.3 - MediaPortal Wiki Documentation
<capturecard commercialname="Hauppauge HVR-2200MCE" capturename="Hauppauge WinTV-7164 BDA Digital Capture DVBT" devid="VEN_1131&DEV_7164&SUBSYS_89000070&REV_81">
<capabilities tv="true" radio="false" mpeg2="true" mce="false" sw="false" bda="true"></capabilities>
<tv>
<interface cat="capture" video="2" audio="3" mpeg2="1" sectionsandtables="5"></interface>
<filters>
<filter cat="networkprovider" name="Microsoft DVBT Network Provider" checkdevice="false"></filter>
<filter cat="tunerdevice" name="Hauppauge WinTV-7164 BDA DVBT Tuner" checkdevice="true"></filter>
<filter cat="capture" name="Hauppauge WinTV-7164 BDA Digital Capture DVBT" checkdevice="true"></filter>
</filters>
<connections>
<connection sourcefilter="networkprovider" sourcepin="0" sinkfilter="tunerdevice" sinkpin="0"></connection>
<connection sourcefilter="tunerdevice" sourcepin="0" sinkfilter="capture" sinkpin="0"></connection>
</connections>
</tv>
</capturecard>
I'm not really keen on the idea of having to install a database server and then run a standalone install of TVE3 simply to gain the functionality of my second digital tuner.
Why , as it does so much more, especially for dvb
If you do decide to, go back about 2 weeks on the releases of both TVE3 and MP svn.