When you going to buy a digital TV take in a video of an avalanche (commonly found on extreme ski/snowboard videos) watch the video of the avalanche on the new TV before you buy it, and if it pixalates don't buy it. Pixalating is when the picture breakes up into small squares. Avalanche footage has been the best test I have found.
The TV that you should buy is a Samsung, specifically the Samsung LE26C450 model. The TV set has got impressive levels of detail and definition and also adds a bit of 3D in it. It has also won the best TV award in 2010. For more information, log on to http://www.whathifi.com/best-buys/tvs.