Can I Free Download Videos From Youtube Without Signing In? If Yes, How?

You can view all the latest releases by only downloading them and only paid sites can only provide you the best quality download...so check out this site....
moviewatchlist.com

You can view them for free, but you cannot post up videos. You can link to the videos, but you can't download them - not to my knowledge.

Use website-based video downloader, then you don't need to sign up.

Of course! Just go to http://www.youtube-mp3.org/ I use it to get music on my phone ;)

You can find many great tools to help you download videos from Youtube without sign in. For example, video downloader pro. It's a software. Any video that is playing on Firefox, Internet Explorer or another well-known browser can be downloaded with a simple click.  If you use the Firefox browser, there is a specific plug-in to get if you want to grab videos from YouTube and other video sharing sites.

http://acethinker.com/youtube-downloader/