Why does x look better than x

[oli356]

Was walking around Costco earlier and had a look at the TVs.
2 42" plasmas, same price, different make. One looked so much better than the other as the other looked blurry, while my dad thought the opposite :s.

Why is this? Makes life sort of hard if your trying to buy a TV. They were both playing football on sky sports by the way.

Hard to tell the difference I feel sometimes between a £800 and a £600 monitor in store imo

 

[oli356]

Thanks
Will take a look at the link, Some of the tvs were actually dark, like the brightness was down lol :s

The Panasonic TX-P42V20B is a fairly easy recommendation. Despite featuring slightly inaccurate Gamma tracking (in our review sample), the images it put out were absolutely excellent. It stands alongside the Panasonic VT20 3D TV in producing the deepest blacks out of any flat-screen television on sale today, and also features excellent Greyscale tracking, highly accurate colour, crisp motion, and just about no input lag. That series of accomplishments mean that the Panasonic TX-P42V20B will almost never fail to produce an incredibly satisfying experience, whether you’re watching HD movies, SD TV, or playing video games on it.

The only question left is whether or not the TX-P42V20 is worth the extra money over Panasonic’s already-excellent TX-P42G20, which arguably represents the sweet spot in terms of price and performance in the company’s 2010 Plasma lineup. If you watch TV primarily in a light-filled environment, then the answer is yes, because the TX-P42V20’s ambient light filter helps prevent the picture becoming washed out when faced with stray light. Dark-room performance is improved over the G20 too, measuring at just under 0.01 cd/m2 compared to the G20’s 0.02 cd/m2, although this improvement, whilst remarkable, is less noticeable.
Although many people will wince at the idea of paying a four-figure sum for a “small” 42-inch display, we think it’s refreshing to see that Panasonic is still producing premium displays at this screen size. Regardless of cost, the Panasonic TX-P42V20B is one of the best HDTVs on sale today, and indeed, one of the best Panasonic has ever produced.

Thumbs up from them as well, just don't understand what settings you should be putting it on, or if you should be calibrating it - somehow