Hi, I'm a newbie in this forum and also in rear projection tv, and I have seen a thread about the Sony vs. the Hitachi "S" series, but have not seen it vs. the "F" series. I currently own a Hitachi 32" Ultravision for 6yrs(and only 6yrs), but it is starting to give me problem (having white thin horizonal lines thru out the whole screen from top to bottom about 1" apart), it's really only noticable when it has a dark background. I was quite happy about the Hitachi until the problem came along. But I think now I am ready for a bigger tv anyway and maybe a HD, so I went out to do some shopping around. I have it down to the above two model. I think I like the black finish on the Hitachi more than the silver on the Sony. The variable PIP size, and the high audio output(20w per channel) on the Sony is nice. But I do want a better tv with better picture quality. I know the Hitachi "S" series is the way to go, but it is about $1k CDN more, so that's really out of my reach. Can someone give me some advise? Thank you so much.