Download the latest nvidia driver from http://www.nvidia.com make sure your system doesn't have X running and execute the installer. The installer will ask you some simple questions and then install the driver, if this installation fails then the nvidia linux forums normally have a solution to the problem.
http://www.nvnews.net/vbulletin/forumdisplay.php?f=14
Edit your /etc/X11/( XF86Config | xorg.conf ) and in the Device section set the following;
Section "Device" Identifier "Videocard0" Driver "nvidia" VendorName "nVidia" Option "TVStandard" "PAL-I" Option "ConnectedMonitor" "TV" Option "NoLogo" "True" Option "RenderAccel" "True" BoardName "NVIDIA GeForce FX 5200" EndSection
That should now start in TV-Out mode aslong as your resolution is set to 800x600 (or other TV Out capable display modes??)
Also for Side Band Addressing and Fast Writes add the following to your /etc/( modules.conf | modprobe.conf )
options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1
Lifted from the nVidia linux readme...
The "TVStandard" option should be added to your screen section; valid values are:
"PAL-B" : used in Belgium, Denmark, Finland, Germany, Guinea, Hong Kong, India, Indonesia, Italy, Malaysia, The Netherlands, Norway, Portugal, Singapore, Spain, Sweden, and Switzerland "PAL-D" : used in China and North Korea "PAL-G" : used in Denmark, Finland, Germany, Italy, Malaysia, The Netherlands, Norway, Portugal, Spain, Sweden, and Switzerland "PAL-H" : used in Belgium "PAL-I" : used in Hong Kong and The United Kingdom "PAL-K1" : used in Guinea "PAL-M" : used in Brazil "PAL-N" : used in France, Paraguay, and Uruguay "PAL-NC" : used in Argentina "NTSC-J" : used in Japan "NTSC-M" : used in Canada, Chile, Colombia, Costa Rica, Ecuador, Haiti, Honduras, Mexico, Panama, Puerto Rico, South Korea, Taiwan, United States of America, and Venezuela