i end up hooking up hi def and standard def cables
from the cable box to tv. on your crestron, pronto..
whatever, i have an icon for hdtv and standard.
tap standard and it will go to your s-vid input,
hit hdtv and it will go to your dvi or progressive
in. i find this better than a toggle stretch button
on your control. keep everything as macros,nice
and easy for the end user.