Does this happen only with television broadcasts? If so, you might want to check the settings in your cable box or satellite box if you have one of those. In some cases, resetting the box or call your service provider and asking them to load a firmware update can also fix some of these issues.
I'd also be interested in hearing if it's happening with other inputs, like game consoles or Blu-ray players.
I have recently purchased a Samsung LE40C6540 LED TV and im currently experiencing a few picture problems.
When watching certain HD programmes there are often prominent white dots all over the screen. This is mainly when the screen is made up of darker colours but can still be seen at lighter times too. Other HD programmes and channels can look great so quite confusing.
Ive been through all the picture settings but nothing seems to remove this problem.
Any help would be greatly appreciated.