I made another thread but basically I am wondering if I can program macros into the channel icons as well, basically I have my hdmi input for hd channels only, and if I have a discovery HD icon, I was wondering if it would be possible that when I hit it, it switches my tv and scaler to hdmi and then tunes to that channel.

Im using 480i composite mostly because I purchased the new hqv realta scaler and thats the only way to get it to scale 480i, my bell express (dishnetwork) receiver only allows one output resolution and makes there receiver scale the channels otherwise.