Originally Posted by CyberSEO

Any theme on your choice.

It must be a plugin, not a theme. E.g.: CyberSyn - WordPress Plugins which imports videos from YouTube, Vimeo, Flickr, IGN, Ustream.tv and DailyMotion RSS.

The result may look like this:

Music Video Tube | WordPress self-populating tube

or like this:

Game-World Videos

Just switch the theme and the same site will look a way different