Fxtv is an X11-based FreeBSD app that provides TV-in-a-window and
   image/audio/video capture capabilities for Bt848/878-based tuner/capture
   cards.

   To use this app, you need FreeBSD 2.2.x or 3.x or -current as well as a
   capture card based on the Brooktree 848/878 chip.
   Examples include the Hauppauge Wincast/TV, the STB TV PCI,
   and the Intel Smart Video Recorder III.

   Refer to the README for details on usage

WWW: http://www.freebsd.org/~rhh/fxtv