Yes paddy your right, we do a manual demo on every flight of the last week of every month, plus we also cover it breifly every SEP. because of the frequency we have to do this i dont think we look out of practice or unproffesional when our tv monitors are down and we are required to do last minute manual demos. Maybe others may beg to differ but i have never witnessed cufuffle and confusion in these situations on any of my flights.