My picture is blurry,and words are blurry,what do i do

A blurry image on a high-definition LCD TV is typically the result of a mismatch between the TV's resolution capabilities and the resolution of the signal that is coming from connected devices, such as a DVD player or satellite TV receiver. Typically, blurry pictures result when a peripheral device connects to the TV through nonHD cables and jacks.

If your TV's connected devices do not have HD capability, they will transmit content to the TV in standard, analog signals. These types of signals are only capable of resolutions of up to 640 by 480 pixels. Pixels, for picture elements, are the tiny dots that make up the screen image. Most HD LCD TVs are capable of resolutions of as low as 1,366 by 768 pixels and as high as 1,920 by 1,080 pixels. When this big of a discrepancy occurs, the images display on the TV scaled, stretched and blurry.