Originally posted by: yacoub
hey xtknight i've got a dilemma maybe you can solve:
Will DVD movies (coming from my DVD-ROM drive) look as clear and sharp on an LCD TV as they do on a PC LCD monitor?
DVD-ROM->LCD TV vs. DVD-ROM->LCD monitor? Not sure really. It depends on a lot of things. If you ffdshow to postprocess stuff, the LCD monitor may give you a more accurate rendition of that output. But, if you feed it raw DVD/MPEG-2, the LCD TV's filtering (if it has any) may produce a more attractive image.
If you mean DVD-ROM->LCD monitor vs. standalone DVD player->LCD TV, then I'm also not sure, but my guess is that the PC solution would come out looking better, especially with ffdshow/postprocessing. LCD TVs typically run the material through another run of at least scaling or filtering, reducing quality along the way. Additionally, they use odd native resolutions sometimes like 1366x768. Either way I couldn't tell you for sure, I've never tried it, but DVDs look great on my NEC/DVD-ROM. They looked just fine on my DVD player/CRT TV also...I haven't tried it with my LCD TV. I'd like to think there isn't any noticeable difference between any of them when you're sitting far enough back.
TV inputs that match up to videocard outputs are generally only 15pin D-sub (VGA) and S-video.
I should be able to hook that up to my PC via the S-Video output of my GPU.
But what will that look like, quality-wise?
What's the image quality of S-Video?
It's a Y/C connection like composite, but only the Y (luminance) and C (chroma) are separated. It's not nearly as good as YPbPr (component), though. S-Video, IMO, is something to be avoided today, especially when there are other connections available (YPbPr, VGA, DVI, HDMI).
Would I be better off using the D-sub (VGA) input on the TV via one of those DVI-to-VGA convertor pieces my GPU comes with?
Better than S-Video? Oh, definitely, as long as the LCD TV knows how to properly handle the VGA from your card (it should be fine). S-Video must be scaled no matter how it's sent (it's a weak 480 line (IIRC) analog signal) so it tends to look horrible at anything over smaller resolutions like 640x480.
Even if I run the TV at its native res (even though I hear the closest native res from a PC is 1360x768 which is 6 pixels short on the vertical), will it ever look as good as running the DVD fullscreen on an actual computer LCD monitor?
It used to be that graphics cards could only do resolutions that were multiples of 8, but that is not true with the latest crop of cards. I believe that trend ended quite awhile ago. But there are still overscan problems, apparently. I think that some people can do it just fine or at least satisfactorily at native (check avsforum).
I answered the other half of this in my first quote-response above.
Is there a way to output a quality digital video signal from my PC to that TV? (Is that what those All-In-Wonder videocards were for that IIRC had other output options?)
If your TV does not input a digital signal, then no, there is no way to get a digital signal to it. Your LCD TV might input DVI or HDMI. You can get both of those out of various video cards today. With a dual-DVI card you can hook one DVI up to your PC and the other to your TV. I did that with my LCD TV (Mitsubishi 42" MVA) and it worked great. The LCD TV seemed to operate at native just fine although desktop colors leaved a little to be desired compared to a tightly-calibrated desktop monitor. Video reproduction was fairly decent, I'd like to think as good as a pure HD feed being fed to the TV's tuner. I had tried some HD media (QuickTime H.264 and Windows Media Video 9-HD samples).
Also gaming: I hear motion blur (ghosting) will be more noticable on an LCD TV than a computer LCD monitor.
Would appreciate your input! Thanks!
LCD TVs do not typically implement overdrive as much as desktop LCD monitors. That was one problem with my TV (it didn't use very much if any overdrive). The MVA ones without overdrive are even worse (something like 70 ms). If you have a cheaper LCD TV that uses TN it may not be as bad. To tell you the truth it's even a bit problematic when watching TV but it can be more annoying with PC use since you really have to focus on small things (e.g. mouse pointers).