Youtube Wall Viewer.
I know it sounds a little weird to have a wall for pulling youtube videos.
One thing i was exploring is the concept of dynamically created video pages, which pull from youtube, vimeo and other such media outlets.
The fine folks made a “Socialist” Plugin, sourced at the bottom of the file.
I also use pop up windows also sourced.
Take a look, and like most things. This page can be used to display youtube walls while letting the users choose their own channels probably by using a CMS.