Will I need a sound-card too?

I'm writing an application where I want to be able to :

   1) Select a TV channel to receive
   2) Collect the digitized audio from this broadcast

Will the video4linux driver(s) give me this ability?
Will I be forced to use a seperate sound card to get
the digitized (stereo) audio channel?

The cost of the TV-Tuner card is not an issue,
but my TV-Audio capture system must be able to
fit into a SINGLE standard PCI slot.

Yes..  all I want is the AUDIO from a TV signal.
I do not need any video at this time.
--
Aaron Birenboim | Black holes are where G-d divided
Albuquerque, NM |      by zero.
aaron@xxxxxxxx  |
boim.com/~aaron |                      -Steven Wright