There is more than one way to deal with YT clips....
If you are driving Firefox, go get DownloadHelper in the add-ons section. And when you see those three little balls circulating, right click on them and save your Adobe Flash clip to a convenient place on your hard drive.
If you are driving IE.....
Go get Firefox and DownloadHelper, then enjoy your newfound freedom and fun.
Oh, and the plugin works for buttloads of embedded animations and clips...
Enjoy!