I hear you , but the Firewire connection does indeed work, however it simply functions as a control device, not for audio and video.
So if you run NetCommand and hook up your DV camera to it, you can use the remote to control FF/REW/etc. You'll still need to hook the camera up to the TV using analogue outputs, however, so its function (right now) is to merely allow you to sit back and control the camera via the Mitsu remote.
Since most cameras come with a remote, this is dubiously helpful.
I don't really put much value on TV or display audio anyway, so to me this isn't a big deal. It WOULD be nice, however, for them to license/enable the ability to connect a DV camera up via the IEEE 1394 connection and send everything to the TV.