Rare television show - Hound of the Baskervilles Arthur Conan Doyle (1971)

The show opened and closed the story with Watson narrations, plus they actually used a real hound, something most of the other versions never seem to get right. The actors do seem to speak slowly and annunciate directly to the screen at times, and it's funny watching Holmes shoot in the dark at the hound on the moor, yet not accidentally shoot Sir Henry Baskerville. Nikolai Volkov as Sherlock Holmes and Lev Krugly as Dr. Watson.