yeah, you go to the site when a NZ test is on, click 'listen now' and mute your TV.
Or, if you're like me and don't have sky, and so have to watch the game via a feed on the net, you then get very angry that the Jedi's commentary + video feed are too much for my computer to handle.
Incidentally he did all his broadcasts of the Autumn internationals at my local. Barley Mow. shame I was at Twickenham, in Dublin, at Twickenham and ill for the 4 commentaries he did there.