Can someone help me with this issue. I'd like to use picture in picture (I believe it's called...) to record reaction videos, USING MY GOOD FILMING CAMERA, I have a CanonRebel, for my YouTube Channel. So, the content is off the web, my reaction and commentary is via my good camera. Is there a free program to download perhaps? Any help or any familiar with Canon Rebels would be very much appreciated. Thank you.