iTunes 8 officially goes live at Apple’s “Let Us Rock” event, introducing HD shows from ABC, NBC and Showtime, to run for $2.99 per episode (the rest priced at $1.99). In addition, the 8 version comes with the new “Genius” sidebar feature, which lets you automatically create playlists from songs in your music library that go great together. Meaning, iTunes has a smart music reccomendation tool that helps users to rediscover favorite songs in their existing music library and suggests related music on the iTunes Store they might want to add to their music collection (sort of Pandora like). Furthermore, you can visualy browse your iTunes’ music / video libraries, using your album or video cover art and enjoy some new stunning Magnetosphere visualizations, once you turn your favorite music on. Tunes 8 is now available for download via Apple’s website.