Here is a GREAT way to save the entire video to your local storage.

Replace
www.youtube.com/whatevervideo### with
ssyoutube.com/whatevervideo###

Follow the instruction from the link below. It works perfectly for me. I grabbed all of the AC34 videos to watch at my leisure.

You can see the instructions at

http://downfromyoutube.blogspot.com/2011/12/download-video-from-youtube-with-ss.html