We bought this backlit LED LCD Samsung TV two weeks ago from Comet. As we were buying a Blu Ray cinema system, cables, stand and extended warranty, we managed to get them to reduce by a significant amount. If buying instore, be sure to haggle as you will be able to save £100s especially when buying a top end package like this.
The TV is huge and if you have been used to a 42" then you will notice the extra space easily! There are some cool features on this TV and it naturally attracts compliments which is not important for me but if you are keeping up with the Jones, you'll be one ahead! This LCD has been on a diet and is visibly much slimmer than a conventional plasma or lcd. The thickest will remind you more of the thickest of a laptop screen then a tv which very impressive when you have a 55" screen capacity.
At the bottom right of the TV, there are some unique almost invisible buttons. You would easily overlook these unless you knew they were there or looked closely. These are flush touch sensitive buttons that control the basic functions of the TV such as volume, power, channel etc Another unique feature is the inclusion of two remote controls, one is a conventional dull featured remote and the other looks reminds me of a pebble. My initial reaction to the pebble remote was that this was for presentations and flipping inbetween slides. However, this pebble remote which is about the size of a PC mouse, can control the basic features such as channels and volume. Not really sure why this is needed (perhaps it does other functions that I am not aware of) but again it adds to the notion that you are buying into a top end product.
Connectivity with this TV is superb although it is obviously looking at newer technology as there is no scart although there are 4 HDMIs. This is how we have are setup wired up. A scart convertor/ adaptor was provided within the pack. The Media 2 content allows web access aswell as other features like games, photos and media centre. I have not used these features much but it plays anything from a usb stick to hard drive fine without any hitches. If you have wifi set up in your house then you'd be able to make the most of these features. In the same instance, a wired connection can also but made.
If protecting the environment is important to you then you could justify that this TV uses less power (~40%) but why you'd have such a large TV defeats the object. For me, this means not so big electricty bills although I am yet to see if the claims are true. I am confident that it consumes less energy and welcome that but wont be writing to the Green Party regarding this achievement.
Now, the most important aspect the picture quality. This is superb and it does feel sharper than my conventional Samsung LCD. The problem you may have is showcasing it at it's full potential as most Sky HD channels are 720 (I believe). The picture quality is awesome; crisp images, colours are vivid and fluid motions. Blue Ray movies compliment this TV well and make for a pleasurable viewing experience.
It was a large amount of money to spend but if you are looking for a large impressive TV that provides as good a picture as the price tag then this is worthy of consideration.