I also have a BGT3630 and I'm struggling to follow in your footsteps.
I have a normal Ubuntu and I've installed the 3.2.0-26-generic kernel. I followed the BG instructions and the modules loaded without any error messages. A folder /dev/dvb appears with 2 adapters. I was also unable to use scan so I used w_scan as you suggested. The channels.conf file produced has many lines such as
But when I try to use mplayer, I get:
Have you or anyone any idea what's wrong or how I might find out?
$ mplayer dvb://4Music
MPlayer svn r34540 (Ubuntu), built with gcc-4.6 (C) 2000-2012 MPlayer Team
DVBIN: no such channel "4Music"
Failed to open dvb://4Music.
Exiting... (End of file)
Also, when I shut down & reboot, the /dev/dvb folder is gone & I have to reinstall the drivers to get it back. I read that if I list those drivers in /etc/modules, that would load them in on every boot, but that didn't work. I think the modules were there but no /dev/dvb. Any suggestions?