I'm sure the card will work fine.. The HDTV Out, I'm not so sure...
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From some of the release notes on nVidias website it appears they do support the HDTV out in Linux..
Gentoo has some nice documentation on Configuring the HDTV out on your nVidia card in Xorg.
http://gentoo-wiki.com/HOWTO_Xorg_HDTV