The other thing HDTVs can do well is stereo. You can shoot stereo chromes (or whatever), scan them, convert them to MPO files and show 3D images to a room full of people. Much easier to convince people to put some glasses on and look up at the wall together than to look into a little box one at a time.

And no you don't need a stereo camera to shoot stereo unless the subject is moving. You can shoot stereo landscapes with a tripod and macro rail to give left/right camera shift.