Are you serious? I think the difference is huge. SD has muddy colours and next to no texture detail. HD has much better colours ( which makes lighting look 1000 times better ) and texture detail is astonishing. On my HD telly, the difference between HD and SD is greater than DVD to video. After playing HD playing the Wii for instance feels like I need glasses when you go from 1 straight to the other.

i have a Sharp Aquos 37 in my room and on the living room a 50" pioneer elite
love them both equally

Totally agree!

SD looks absolutely terrible once you have used a HDTV, we still have a 42" SD tv in the bedroom, makes you feel sick all the flickering and crap colour/detail etc,

Grats on the upgrade. When I upgraded from SD to 720p nearly 2 years ago now the difference was phenomenal.

Recently I've upgraded again to 1080p 100hz. Imo, 100hz is where it's at, man Planet Earth and Killzone 2 have never looked this good.

I didn't increase in size though (37inch) cause the new tv is for my bedroom. And for those people saying you can't see the difference between 720 and 1080p on anything smaller than 40inches. You need glasses!

Really?! I have 100hz on mine but always have it turned off for gaming and most tv viewing as it gives the picture a strange "fake" look, not a fan if i'm honest,

You sure your new 100hz tv hasn't just got a better response time and lower input lag delay? those two things make a world of difference!

And yeah, I totally agree with you about being able to tell between 720P and 1080P even on smaller screens, it is much more crisp and sharp, any size screen is noticeable, it's just larger the screen the easier it is to see the difference,

Yeah, that's true. Because it's calculating the extra frames it reallys relys on the quality of the tv's tech. I saw a really cheap 600hz tv there the other day, but it was a 42inch SD! lol.

Mine's a good quality Samsung. Occasionally I see what looks like a kind of heat haze around the edges of some moving objects but that's rare and difficult to notice. Generally the tv performs beautifully when turning up gaming quality. Killzone 2 looks amazing with it, as does MGS4 and Wipeout HD. It just makes spaces look more realistic and 3D as you move through them.

I've gotta say even though both kind of tv's are great I think Plasmas are superior to LCDs. LCD's just cant match the color. Especially if you're talking about Panasonic plasmas or Pioneer elite Plasmas. I would'nt trade my Plasma for any LCD. period.

Well, newer higher quality LCD's are starting to take the lead. My old HDtv is a Panasonic Viera plasma 37inch 720p (it can handle 1080p feed but it's native pixel resolution is somethin like 1366x768) and my new Samsung 37inch 1080p 100hz LCD seems to have the edge on it colour wise, well after you turn on the dynamic contrast.

Exactly.

I upgraded a couple of months ago and man it sure is amazing.

The difference is astounding! I was playing MGS 4 at the time and realized that there were things on the screen I had never seen before.