[mythtv-users] Aspect Ratio Help

[Joel Jacobs]

I'm a MythTV noobie and It seems I'm having some trouble getting hdtv to 
display properly.  I'm using an Asus Pundit with integrated geforce 6 
video.  I'm using the folowing modeline:

ModeLine "ATSC-720-120p" 148.5 1280 1296 1360 1650 720 722 728 750


This is 1280x720 (16x9) 120hz vertical refresh.  The 120hz vert was 
chosen because it's divisible by 24,30 and 60 and all modes seem to play 
very smoothly.  I have the vertical scan on my monitor reduced so that 
the raster is actually 16x9.  Problem is I always have black bars at the 
top and bottom of the raster with aspect override "off".  Shouldn't an 
ATSC broadcast fill a 1280x720 raster completely? When I quit playback 
the MythTV Menus fill the raster completely as does my Xfce desktop. 

I've gone through all the settings I can find but I must be missing 
something.  
Hopefully someone can point me in the right direction here.  I will 
eventually have this connected to a 1280x720 projector and I need it to 
fill the screen!
Thanks much!
Joel