Svideo interface on a tv won't support enough lines of resolution to give you a picture worth looking at. Infact, the fact alone that all you have is an svideo port immediatley says that tv isn't a canidate for PC hookup.
You need a moder HD set, w/ 15 pin, DVI, HDMI, etc hookup that supports ~1k lines of resolution.
I have a 62" Samsung DLP, hooked up via 15 pin to a PC, looks great, easy to read text, its like a huge computer monitor. My friends trip out when the see it in action, especially w/ games.
Forget about doing TV + PC unless you have a fairly decent/modern TV.
"Jesus has my heart, but Whiskey has my liver" --Jason Boland