Now that your kernel is configured, your devices have been configured, and your modules are inserted, you will also need an application to actually view or capture the images from your card.
Fbtv is a console-only mode TV viewing program available for viewing on a framebuffer-video enabled system with a Bt8x8 card. If you don't know what a framebuffer is you can read the Framebuffer HOWTO. Fbtv is available from the Bttv homepage with Xawtv.
The following applications require a graphical user interface such as GNOME, KDE etc.
Xawtv is arguably the best-known Linux application used for viewing TV from video sources including Bt8x8 devices; most Linux distributions have packaged versions. If you're not sure of your device configuration you probably ought to start with Xawtv and the -hwscan option to check for suitable devices:
$ xawtv -hwscan This is xawtv-3.94, running on Linux/i686 (2.6.8) looking for available devices port 139-139 type : Xvideo, image scaler name : NV17 Video Overlay port 140-140 type : Xvideo, image scaler name : NV17 Video Texture port 141-172 type : Xvideo, image scaler name : NV05 Video Blitter port 173-173 [ -xvport 173 ] type : Xvideo, video overlay name : NVIDIA Video Interface Port /dev/video0: OK [ -device /dev/video0 ] type : v4l2 name : BT878 video (Hauppauge (bt878)) flags: overlay capture tuner
$ xawtv -device /dev/video0
Motv is a Motif-based rewrite of Xawtv. Other than a more attractive interface, and is also found at the Xawtv homepage. It is otherwise identical to Xawtv.