[mythtv-users] mplayer HD content on SD TV = green bars?

[Sarah Hayes]

Been trying out some HDish content on my EPIA MII10k frontend (1280x740 
xvid's) to see how downscaling would work on to my SD PAL TV via S-Video 
connectors.  We're entering a HD world so I figured might as well test 
to see how my antiquated stuff will cope :)

Well, it's trying to play them (and the picture is going properly with 
audio sync) but I seem to get green bars all over the shop; usually 
along the top but has been the sides.   Is there an command parameter in 
mplayer to fix this or is it just "the way things are"?

Kinda drops the HAF down a touch.

Another question kind of related would be is there a way of marking 
content as not being available for certain frontends?  That way I can 
'hide' the HD stuff from the MII and the laptops/desktops can see/play 
it fine.