Actually it's a friends TV but it's bugging me. He bought it from Wal Mart a few weeks ago, it's a 42' Sanyo LCD 1080p.

I think it's this one.
http://www.walmart.com/Sanyo-DP42849-42-LCD-HDTV/ip/10929990

Anyway whenever there are darker colors on the screen (Playing Xbox, or PC etc) the darker colors blend HORRIBLE!!! It doesn't blend well and you can see the lines between different colors. It irritates me? I want to get a new LCD TV but I'm not sure if that's something I need to expect.

It looks like this with the different lines.

http://savoirprint.com/images/help/01-gradient_dither.gif