For Internet Explorer (PC) users
1) Find your video clip you want to download, the URL in your browser should look something similar to this...
2) What you want to do is to highlight that URL, right clock on your mouse, and select copy as pictured here..
3) After you have your URL copied, visit http://savevideodownload.com/download.php.
4) Go to the URL box contained on the top of the website, and right click the white space. Select "Paste" from the menu to paste your URL. Then press the "get link" button.
5) Wait a few seconds and your video download link will appear. All you need to do is go click on it to save it to your computer.
Unfortunately the video will not be playable because it is in .flv format, which requires a special player to play the youtube video you downloaded. No worries though, you can find an awesome and free .flv player here, http://www.flvdirect.com/?aff=984_generic.
Congrats! You have successfully downloaded and are now able to play back your youtube videos you downloaded! Quite simple, eh? Enjoy!