<img src="http://tctechcrunch2011.files.wordpress.com/2007/01/over the net and they can all watch simultaneously.
The Hava box also has component, S-Video, composite, and RF inputs for TV, and can use IR blaster to control set top boxes you get from your cable provider for HD TV or digital cable. You can get one now for $199.
The major difference between this and Slingbox is the fact that if you have a Media Center on the go, it can use the Hava as the tuner no matter where the actual TV source is. So all the client PCs have a "unique" tuner it can use for TV watching and recording.