Ok, what i gather here.. the cons and pros :-

Plasma pros : no lag/ghosting issues, wide viewing angles, slightly natural colors, most have tempered screen glass for durability.
          cons : burn-in, image-retention, slightly more power-consumption.

LCD pros : slightly less power-consumption, no burn-in, no image-retention.
      cons : lag/ghosting issue but hardly noticable(?), too much contrast lead to picture quality doesn't look natural(?), viewing angles not as good plasma(?), no extra protection for the screen.

(Referring to most common lcd/plasma which its not 100Hz and above, or not Kuro and etc.).

Anything i missed there?.. do correct me, if i list wrong there.. 
What i meant was, normally i watch movies its on "cinema ratio" mah.

I watch abt the same amount of Astro and movies, thats why im worry abt the those burn-in and image-retention, esp. some PS3 gaming.

Cheers

I think this is normal to plasma. This is what we call image retention, and it varies between the make of plasma. Panasonic's plasma has less obvious IR if compare to the korean brand from my observation.

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Added on September 26, 2009, 8:31 am

Technically, black bars are not going to cause burn in, but if you watch movies with letter box format for very long hours, it cause the cells at the black bars area to age slower then those cells in the pictures part. After long hours of use, and when you swich to full screen images, you can actually see the difference in colour of the pcitures between the top / bottom of the tv and the other part. Theorithically, this effect can be permanent. Correct me if I am wrong.

Since most movies are in 2.35:1 format, what I do is keep a collection of TV drama series in hi-def (720p) format, such as the CSI, CSI:Miami series (that i truly enjoy). These dramas has aspect ratio of 16:9. I play an episode or two of these dramas after a few hours of movies in 2.35:1 format. Don't have to play them on the same day, you can turn off or TV and watch the series days later. I found this effective in getting rid of the colour differentiation at the bar areas of my plasma. I hope this trick can help.

Ok, what i gather here.. the cons and pros :-

Plasma pros : no lag/ghosting issues, wide viewing angles, slightly natural colors, most have tempered screen glass for durability.
          cons : burn-in, image-retention, slightly more power-consumption.

LCD pros : slightly less power-consumption, no burn-in, no image-retention.
      cons : lag/ghosting issue but hardly noticable(?), too much contrast lead to picture quality doesn't look natural(?), viewing angles not as good plasma(?), no extra protection for the screen.

(Referring to most common lcd/plasma which its not 100Hz and above, or not Kuro and etc.).

Anything i missed there?.. do correct me, if i list wrong there.. 
What i meant was, normally i watch movies its on "cinema ratio" mah.

I watch abt the same amount of Astro and movies, thats why im worry abt the those burn-in and image-retention, esp. some PS3 gaming.

Cheers

dunno about sammy panels latest models now, but the 3year old sammy 1024x768 plasma I had got IR but no burn in. tested it with 1-2 months continuous  viewing astro on 4:3 mode.. (black bars on left/right side)

when reset back to 16:9 mode, can see IR but after a few days all clear back to normal....

high end LCD also got gloss panel mah...

One more Plasma Cons - More reflective panel.

Anyway, dun worry so much about burn-ins or IR la.  Technically, they still exist but in real life, just practise common sense lo.  Like what most say, alternating the ratios helps.  I normally will zoom in too sometimes when watching BDs, coz i also just like my pic larger    For normal usage, the current gen of plasmas are more diificult to achieve burn-ins than you think

If still really ma fan, get a LCD, good also what 

panel? ...  I mean the screen, soli ... 

Oh, even you switch OFF and then switch ON on the next day still can see the IR? is this because of old technology plasma panel? anyway, as long as it is not really burn-in, then it's safe

wow so slim this LCD..

dunno about sammy panels latest models now, but the 3year old sammy 1024x768 plasma I had got IR but no burn in. tested it with 1-2 months continuous  viewing astro on 4:3 mode.. (black bars on left/right side)

when reset back to 16:9 mode, can see IR but after a few days all clear back to normal....

high end LCD also got gloss panel mah...

panel mah same as screen lor..

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Added on September 26, 2009, 4:37 pm

next day still can see faint IR, but after 2-3days then gone..

so IR is not equal burn in.. 

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Added on September 26, 2009, 5:16 pm

wow so slim this LCD..

Warao eh.. had to wait few days summore... ...

Whats the point of slim lcd tvs >.< besides cosmetic purposes? Many slim tvs are resorting to edge led lighting over full led / local dimming to achieve slimness. Kinda pointless i fell

Its technology...pointless or not it differs from personal point of views. 

When there is a demand, so will be a supply.  Most people still buy electronics based on the aesthetics, not 'performance'.  Some even decide what to buy to match their existing furniture colour .... 

Haha this purchasing trait is a very Malaysian thing. I do not think the Americans nor the Europeans are as bad as us when it comes to placing cosmetic appearance as a priority in purchase.

dude these stylish products are meant for 1st world countries, i.e. for people who are into aesthetics.. you see these selling in malaysia meh? 

Bro,Are u sure that lcd do not have IR ? FYI,i had seen those LCD in front my both eyes that they have IR and mostly are from Samsung.

dunno about sammy panels latest models now, but the 3year old sammy 1024x768 plasma I had got IR but no burn in. tested it with 1-2 months continuous  viewing astro on 4:3 mode.. (black bars on left/right side)

when reset back to 16:9 mode, can see IR but after a few days all clear back to normal....

When there is a demand, so will be a supply.  Most people still buy electronics based on the aesthetics, not 'performance'.  Some even decide what to buy to match their existing furniture colour .... 

oh, your TV drama series got the channel logo there? consider still image...haha...just to confirm, anyway, this is a good suggestions, by the way, I just leave it play with ZOOM IN (cover all area 16:9) for few min, then IR solved..... 
Correction, in long period plasma turn ON, the power consumption is slightly lower than LCD TV...hehe...this is what I get the info from the Pana's catalogue. Now I enjoy with my plasma about 5 months, so far really saticfy with it especially the natural color/image and wide angle view (all angle still same brightness/color)....    You can try go to visit nearby Elec shop to view the LCD TV on 50--70 degree from center, then you will see the differents on each LCD TV. Picture will become more brightness, this was what I notice before getting my plasma....
Oh, even you switch OFF and then switch ON on the next day still can see the IR? is this because of old technology plasma panel? anyway, as long as it is not really burn-in, then it's safe