The concept of overscan seems particularly difficult for geeks to comprehend — normal people usually don’t care to even understand it — and some even get down right confrontational when they first learn that all TVs do it.

But the fact is that even the LCDs and plasmas don’t show all 2 million pixels of a 1080p signal out of the box. Instead about 3 percent of ‘em are cropped off the edges and the remaining pixels are scaled to fill in all the pixels of your HDTV.

The real kick in the head is that the isn’t a good one, especially when you consider the technology that’s available today.

9eba7f1118vergen.jpg 350x198 HD 101: Overscan and why all TVs do it

Read the rest here:
HD 101: Overscan and why all TVs do it