What is the safest and easiest way to download youtube videos onto the ipod touch?

I just got a 16 gb ipod touch, and I would like to download youtube videos onto it. I am aware that the touch has a youtube application, but I would like the videos to be saved onto my ipod. I would rather not download any programs, but I will if necessary. What is the fastest, safest, and easiest way to get... show more I just got a 16 gb ipod touch, and I would like to download youtube videos onto it. I am aware that the touch has a youtube application, but I would like the videos to be saved onto my ipod. I would rather not download any programs, but I will if necessary. What is the fastest, safest, and easiest way to get youtube videos onto the ipod?
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