Of course, the way to get 'optimal' TV-out from your Nvidia (or other) card is not to use it's TV-out facilities at all and build a VGA -> SCART converter for SDTVs (see http://www.sput.nl/hardware/tv-x.html for example). This is only true of home-built converters, commercial converters perform scan conversion which lowers the image quality.
Then (with the correct modeline) you _can_ just send the originally broadcast, interlaced, stream straight to your TV. You are also keeping the RGB signals seperate, not mixing them all together as you do with S-video. No deinterlacing or scaling is required so you're not losing image quality their either, or wasting CPU power. Oh course, this does rely on you being able to capture the original interlaced signal (i'm capturing a DVB MPEG stream, no encoder required). If you're encoding hardware has already thrown that information away and mixed the odd/even fields then you've already lost the image quality. Using a VGA -> SCART converter in this case would still give you better colour definition / sharpness, and if you're encoding at the native resolution then no scaling is required. I've built one of these and the result is _much_ better than the TV-out from by Nvidia card. The image quality is even higher than from my Sony DVB set-top-box. Steve
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