A cardboard accessory was sent out to Sunday subscribers which works with a free smartphone app. But they also made videos that can be viewed on a computer alone. Check out this video for example (action starts about 45 seconds in):
Left-click and drag inside the video to move left and right, up and down; use the scroll wheel on your mouse to zoom in and out. I have no idea how expensive these are to produce. But just imagine (virtually) being in a mud pit or pie fight surrounded by your favorite models