Yeah I got a scart block and svideo cable, oh and guess what, it didn\'t work.
Hmm strange, it shouldn\'t look worse.
A certain way to test if this problem is just because you have gone up some screen sizes is to try RF on this bigger TV and see if that looks even worse. RF on this bigger TV shouldn\'t look worse than scart. If it does theres definatly problems and you may need your TV fixed. You definatly have the correct AV channel selected? Also if theres 2 scart sockets use the first one (AV1) as thats true RGB.
Finally check the scart cable, it should be fully RGB, with all pins availible, if it isn\'t then it won\'t be much better than RF. Still shouldn\'t be worse though.