E. Enabling The FM Radio for Radio-Equipped Cards

FM radio tuners are easily enabled when inserting modules. Simply
   $ modprobe bttv radio=1
...or add a similar option to your /etc/modules.conf and you should be set the next time you restart or load the module. You will also need an application to access the radio. I suggest the console based radio, available with the Xawtv suite, or fmtools. For graphical programs, try gnomeradio or gradio or xmms with the FMRadio plug-in.

Also, you can't listen to radio at the same time as watching TV with your Bttv card (unless you have more than one card, that is).