"AVerTV DVB-T Volar" is now supported by the Open Source DiBUSB
Linux driver. Instructions for setting up the DiBUSB Linux drivers
could be found at

http://www.wi-bw.tfh-wildau.de/~pboettch/home/index.php?site=dvb-usb-howto

Other web pages for your reference:
1. dvb-kernel & dvb-apps - http://linuxtv.org/
2. http://www.wi-bw.tfh-wildau.de/~pboettch/home/index.php?site=dvb-usb
3. xine - http://xinehq.de/
4. mpeg2dec - http://libmpeg2.sourceforge.net/
5. dvbsnoop - http://dvbsnoop.sourceforge.net/