It's a great movie. Everytime they screen this in Japan, I go and watch it. The water, the fire, it's beautifully moving film. One of the best films of my life.
However... it's not exactly for TV. The subtle lights do not show very well on the TV screen. Beautiful and subtle shades of darkness that Tarkovski excells at, is often lost. Very often, the screen becomes completely black and we have no idea what's going on. It's much better than the VHS tape that I used to have, but if possible, if you ever have the chance, see it in a movie theater.
That's the only reason that I give it only 4 stars.