You have a point there Janie, I find QVC actually quite useful to find out how electronic products work, even if you don't by them there. If you see the I Pad demoed I think this would help as actually for a piece of tech it's one of the easiest to use (I've played with one in store - tee hee).
you're right chops - one thing qvc is good at (if the presenter doesn't get in the way of the guest) is an informative demo.