What does "WSS ON" do?. I was sure I could fill the screen when watching a DVD by using Format 2, but I still end up with a letterbox. 

I dont want auto format and was guessing turning WSS OFF would do it. 

Wide Screen Select turned on makes it automatically switch to wide if a tv program is aired in widescreen AND the 'code' for this is in the teletext signal, so it has nothing to do with video-inputs. (as far as i understand it).

However, when a widescreen source is connected, the Avant  should show widescreen by itself (it does with my old '94 Avant with a digital tv receiver) so i guess playing a widescreen, that is: 16:9,  dvd should show full screen.

But i guess having a 'strange' format dvd (not 16:9) needs playing with the tv format settings.

Note: I have a Avant DVD

Most DVD's are 1.85:1 anamorphic and I dont want letterbox in Option 3, 16:9 Widescreen.

Option 2 is supposed to stretch it but it doesn't with WSS ON.