I've been researching the various HD-based DVD recorders out there, and I haven't been able to figure out one detail. Don't have Tivo, but I've heard lots about it from friends. With the HD burners, can you mimic the "commercial killing" functionality of Tivo, and the live TV "pause" function? In other words (I think this is right), can you view from the HD recording, while the HD is still recording the very show you're watching? Mucho gracias!