I think some code for NV50 TV-out exists but not sure about its status.
I'm using some older hardware for a MythTV box. I have a Geforce 8800GTS in there; it's the older 320mb version. It isn't capable of doing VDPAU so I was considering using Nouveau on it, but I'm not sure if it's capable of doing TV-Out.
The TV is an older CRT, so using DVI or VGA isn't an option. And the box is going to be running Fedora 13.