Thread: TV overscan
View Single Post
Old 17-01-2011, 23:31   #15
TheDon
Inactive
 
Join Date: May 2007
Posts: 1,567
TheDon has reached the bronze age
TheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze ageTheDon has reached the bronze age
Re: TV overscan
Quote:
Originally Posted by looper35uk View Post
As Tweedy says, set your stb for 1080 wide, all programmes will be shown in their original aspect ratio.
No, they won't.

All programmes will be stretched to 16:9 if you do that, nothing original about that. Leave it off wide and 4:3 content gets shown in 4:3, and 16:9 gets shown in 16:9.

That's not the issue the op is having anyway.

To explain as many people seem to not be getting it, on SD the top few lines are often filled with junk which is encoded data for closed captioning and teletext. If you have your TV set to just scan (or 1:1 pixel mapping or whatever it calls it) you'll see this encoded data on the top line of pixels flashing away, the way to hide it is to turn overscan on (because all SD tvs were assumed to have overscan as it was in the nature of how CRTs work).
Turning overscan on when your box is set to HD though will not just hide this unwanted data, it will also crop the picture on a HD image that doesn't need overscan.
TheDon is offline   Reply With Quote