SaveDeo is a online service for downloading streaming videos in all available formats. Supported sites are: YouTube, vimeo, Facebook, TED, Instagram, flickr, VEVO, Vine, Twitch, Blip TV, College Humor, Apple Trailers, Adobe TV, SoundCloud, Metacafe and Mixcloud. Normally, none of those sites make those files available for download but SaveDeo uses an unique legal way to get those streams available for download in different formats typical of the video.
Usage of this service is very basic. You should choose any video you like, paste the link to the input on this page, select a format and wait until the video will be downloaded. It works even for non-public videos. An interesting feature of SaveDeo is that it allows you to download Channel Playlists and all the videos within it if url of the channel is provided.
I am glad to find this service thanks to a comment in one of the blog post. Apart from the capabilities of SaveDeo, I have also liked its neat and clean design. I would certainly recommend it. Hope they support more streaming media sites in future.