Roku tonight unveiled three new Internet Players as part of its mission to hold off the new Apple TV. The Roku HD is now one of the least expensive networked media hubs yet and costs just $60, or less than two thirds the price of its Apple rival. Video reaches the same 720p, and it supports Amazon VOD, Netflix and MLB.tv for video as well as MP3tunes, MOG, Pandora and RadioTime for audio. Media from Facebook and Flickr also pipes through the device.