You could add the TV "PicureMode" cycling command (Vivid, Normal, Movie, Pro) to your LCD (custom label) but it is a cycling command (not discrete). You could also have your "Play Xbox" Activity send the command sequence to set the TV in "vivid" mode on Activity start up, and restore it to "standard" mode on activity exit by using the Activity Start/End macro feature. When you run the activity setup wizard, select the option that ask you if you want to add more control of options and devices for this activity. However, an out of sync will be a bitch to fix.