I have been videoing my hunts for 3 years now and have many kill on video. I will say this, it is very hard to risk the movement of turning on the camera when the big 10 comes in, but it is well worth it, I am always showing my videos to friends.
A little advice thoe, Turn the camera on 20 min. before dark, there is not enough time to mess around with a camera and shoot, pluse it is one less step when the animal comes in

Another thing: center the camera next to a land mark (like a tree), this way you know that the animal is in frame when you give' m the blade.

P.S. If you really get into it, try hunting out of a pop up blind like a Double Bull, it is much easier.
Good Luck!!!!