I am looking for a film that aired in the early 70's on the CCFF. I am only remembering it vaguely, but it involved a boy and either a dog or a wolf, and a wintry setting. I believe the boy had been friends with the animal since it was a pup, and it seems that the animal as an adult was killed tragically trying to protect the boy from something. I remember it being extremely sad at the end, with the boy crying over the dead animal's body. Now, is this "Sirius", "Lone Wolf" or "Tymancha's Friend"? I'm leaning towards the latter title, but would like some clarification. Any help in discerning this, and then locating the title either on VHS or DVD (-R) would be greatly appreciated. Thank you!