Make/model of video card and someone could probably emphatically answer
Yes/No. That said ...
If your video card has an output for the connection then yes you probably
can, else no unless prepared to change video cards (lots of cheaper cards
now have tv out capabilities).
Look on the back of the video card where the monitor cable attaches to your
pc. If that same card has a round plug (RCA jack) that looks like the video
in/out connector on your vcr or the audio connectors on your vcr and/or
stereo then I'd guess the cards "capable" of it (else why bother having the
connector even there). Read the manual and look in the online help should
mention more.
There might also be another type of plug for something like an LCD panel
etc.. Usually if that's the case, the card also came with some extra cables
to convert between connection types and it's almost invariably some type of
dual-head that's multi-monitor capable (with one "monitor" being your tv if
desired) in todays market
