The V20 USB is for:

- Panasonic webcam for Vieracast's Skype application
- Wireless dongle (networking; DLNA)
- USB keyboard (for typing instead of using TV remote control to input)
- some other regions has the USB hard disk recording enabled (but not for Malaysia)
- playback of photos/music and videos (limited format) from USB drive
- as I recently discovered, it can be used to charge your PS3 controller while your PS3 is off

Some say that the difference is very significant and well worth the money. Try to learn more about HDTV buying criterias and the best bet is to see them with your own eyes.

x20 panel resolution is 1024 x 768, it can accept 1080p signal but display at 720p as its maximum resolution

v20 series got 1080p full HD panel

u20 series, altough it got 1080p panel, it can only support 900 lines of moving picture resolution

you can play movie files either through computer or standalone-alone media player

any HDTV should have enough computing power inside to process maximum resolution video signals and display them smoothly at the rated 50/60 fps

astro SD decoder video output is 576i
astro byond: 576i(SD), 720p(HD), 1080i(HD)
FTA satellite TV: 576i(PAL SD), 480i(NTSC SD), 720p(HD), 1080i(HD)

indeed some astro HD channels are broadcast in 1080i

BD is 1080p, so far there is no 1080p satellite TV channels in the world yet

u20's computing power is crippled a bit, ie using less powerful CPU, may be to save cost

you can play movie files either through computer or standalone media player

Remember the X series panel is not native 720p panel, it shd be 768. There is still scaling involved. Another thing to note is that, most likely u r watching a movie that started at a higher resolution, 1080p, so there was already scaling once if ur source is 720p.

Panasonic is limited to AVIs (Divx and Xvid) and AVCHD. I heard that Samsung can play more formats but please do check. I am not sure about RMVBs if you are into Chinese downloads as many built-in media players do not support.

just ordered the 50V20K. arrive next week

i m considering..... coz my 42X10 wanna sell now after onli 1 year after the V20 coming in. things i considering:
1) how long i will b using the V20.
2) wat if after just 1 or 2 years i will sell V20 out, not worth paying extra RM5xx.
3) wat if it last more than 2 years, after 2 years got problem (touch wood).
4) anyone used their VIERA more than years & do u guys encounter any problems
thx

x20 panel resolution is 1024 x 768, it can accept 1080p signal but display at 720p as its maximum resolution

v20 series got 1080p full HD panel

u20 series, altough it got 1080p panel, it can only support 900 lines of moving picture resolution

just got called by the salesman, the stock 50V20 is here. ask me to go & pay the rest. i think i gonna buy the extra warranty through Panasonic website E-Warranty. much cheaper i guess.

By then new version come out and you back to square one...

Anyone on the U series? 50U20K? Any review from users here?

Been 1 of the first few users of 50U20K since May'10 and here are my comments:
(1) TV is a bit reflective;  need to place TV at location with lesser reflection e.g. no opposite wall lighting or darker wall / curtain.
(2) If fancy about USB link for movies, internet, network connection, etc, forget about this TV.

I placed my TV in a TV Room where lighting is kept ideal and reflection minimum to obtain optimal PQ performance.  For ASTRO without Beyond, this TV performs excellently at viewing distance ~12 feet.  For Bluray movies or FHD movies via PMP, I notice no inferior in PQ quality since there is no TV side by side for comparison.

On a frank note, V Series has sharper / brighter PQ quality; price difference of ~RM1,800 should not be a deterrent.
Market is flooded with 3D TV / LED (55in - 60in) now and their prices are coming down so fast e.g. Sammy 63 ~RM14,000 and Sony LED ~RM16,000. I now feel that it is not the issue of U / V Series; it is the 50in that is now small to my accustomed eyes.

Both are as reflective. You will not notice 42in reflectiveness that much as coverage is is much smaller.
50in X Model is value for money if you are on Astro (incl. Beyond) and DVDs; someone mentioned 1 V Model = 2 X Models.
50in U Model is a FHD model (X is a HD Model) and you will notice vast detail differences on Bluray & FHD movies via PMP eg. Avatar / GI Joe.  If you are on 42in Models, your eyes can't really tell the difference.

Go to best denki Mid Valley to see for yourself, whether you can notice the difference.  There is a V Model there.

Trust me, there is no way ur eye can see differences between moving resolution of 900 and 1080.Full HD means a panel with 1920 x 1080 pixels and the U meets that requirement.